💡 Our Technical Review in summary
1. Summary
Microsoft OneDrive experienced a service issue where a code regression in a recent deployment caused a compatibility conflict. This conflict prevented files, folders, and list items that were deleted and subsequently restored from the recycle bin from being accessible or shareable by standard authorized users.
2. Impact
- Affected Users: Users with “Edit” and “Full Control” permissions.
- Technical Impact: Failures in sharing and permission operations for items restored from the recycle bin. Processes attempting to enumerate permissions on these specific items also failed.
- Exceptions: Site Administrators maintained complete access to the affected content throughout the incident.
3. Status
Final Status: Service Restored
- Incident Duration: October 13, 2025, 3:50 PM UTC – February 20, 2026, 10:45 AM UTC.
- Resolution: Microsoft deployed an automated repair process to remediate the impacted items. Telemetry confirms that service health has returned to normal.
- Root Cause: A deployment regression introduced a compatibility issue that blocked the restoration of access rights for recently recovered items.
- Next Steps: Microsoft is reviewing update and testing procedures to prevent similar regressions in future deployments.
Microsoft Official Issue Details
User Impact
Users with edit and full control permissions may have been unable to access or share some files in OneDrive.
Status: serviceRestored
Service: Microsoft OneDrive
Classification: advisory
Origin: microsoft
Updates
- 2026-02-20 18:54
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may have been unable to access or share some files in OneDrive.
More info: Specifically, this issue impacted files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experienced failures in sharing and permission operations in OneDrive.
Additionally, processes that attempted to enumerate permissions on these items may have seen failures.
Site administrators still had complete access to the content that was been deleted and restored.
Final status: We’ve monitored service health telemetry to confirm that our fix has remediated the impact.
Scope of impact: Some users with edit and full control permissions who were attempting to access or share some folders in OneDrive that were deleted and restored from the recycle bin may have been impacted.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
End time: Friday, February 20, 2026, at 10:45 AM UTC
Root cause: A recent deployment contained a code regression that introduced a compatibility issue between code that was preventing items that had been deleted and recently restored from being accessible again.
Next steps:
– We’re reviewing our update procedures to understand why impact to file access wasn’t caught during the testing phase. This will allow us to drive service improvements by proactively identifying similar issues in the future and improve our update testing processes.This is the final update for the event.
- 2026-02-18 18:22
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: We’ve completed deployment of our fix that entails an automated repair process and are monitoring our service health telemetry to ensure that the repair process remediates the impact for all affected users.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Friday, February 20, 2026, at 8:00 PM UTC
- 2026-02-04 18:37
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: We’ve completed our tests within the infrastructure which received the automated repair process and confirmed this action remediates the impact. We’re monitoring the deployment as it progresses to the remaining affected infrastructure, and our estimation for this process to complete remains late February 2026.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, February 18, 2026, at 8:00 PM UTC
- 2026-01-21 19:01
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: We’ve completed the validations for our automated repair process, which we’ve deployed to a portion of the affected infrastructure. We’re running tests within the infrastructure where the automated repair process is running to further ensure it has the desired effect in remediating the impact, prior to progressing the deployment any further. Our current estimation for the repair process to be saturated within all affected infrastructure is late February 2026.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, February 4, 2026, at 8:00 PM UTC
- 2026-01-14 18:47
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: The validation of our automated repair process to identify and correct currently impacted folders, files, and list items is ongoing and will require a bit longer than previously expected to complete. We’re progressing with our internal tests and expect that an updated timeline for impact remediation will be available by our next scheduled communication update.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, January 21, 2026, at 8:00 PM UTC
- 2025-12-01 21:23
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: As the validation of our automated repair process to identify and correct currently impacted items, such as folders, files, and list items is ongoing, we’ve determined that more time will be needed to complete this step. We anticipate the initial validation of our fix will complete by Wednesday, January 14, 2026, at 8:00 PM UTC, after which we expect to have more insight into the overall timeline for impact remediation for all users.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, January 14, 2026, at 8:00 PM UTC
- 2025-12-01 18:54
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: The validation of our automated repair process to identify and correct currently impacted items, such as folders, files, and list items is ongoing. Based on our current estimated timelines, we anticipate the initial validation of our fix will complete by our next scheduled communication update, after which we expect to have more insight into the overall timeline for impact remediation for all users.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, January 7, 2026, at 8:00 PM UTC
- 2025-11-19 20:16
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: We’ve successfully deployed a fix that addresses the underlying issue and prevents additional folders, files, and list items from being impacted. To address folders, files, and list items that are still impacted by this event, we’re validating an automated repair process that identifies and corrects impacted items. While initial indications are that the process to address and corrected impacted items will take an extended period of time, we’ll communicate the status of this long-term mitigation strategy and provide an updated remediation timeline as this event progresses.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Monday, December 1, 2025, at 8:00 PM UTC
- 2025-11-12 19:25
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: The removal of the errors isolated during our internal tests and validations requires additional time, and we’ll provide an updated timeline for our fix validations once it’s available.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, November 19, 2025, at 8:00 PM UTC
- 2025-11-05 19:08
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: During the validation process of our fix, we isolated additional errors that needed to be addressed prior to beginning a broad deployment to the affected environment. We’re working to eliminate all additional errors, and we aim to provide a timeline to deployment as one becomes available.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, November 12, 2025, at 8:00 PM UTC
- 2025-10-29 18:09
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
While we work to implement our fix to fully resolve the impact, your organization may raise a support case to have the fix manually run to repair affected items.
Current status: We’re continuing to prepare the fix for broad deployment to the affected environment, and we’ll aim to provide a timeline for the deployment to begin by our next scheduled communications update.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, November 5, 2025, at 8:00 PM UTC
- 2025-10-27 17:42
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: We’ve completed our internal validation of the completed portion of our fix and confirmed it successfully remediates impact. For any users experiencing impact at this time, your organization may raise a support case to have this fix manually run to repair affected items. With our internal validation completed, we’re continuing to prepare the fix for a future deployment so that the repair job runs proactively to fully remediate impact. We’re working to estimate a timeline for this deployment and overall impact resolution.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, October 29, 2025, at 7:00 PM UTC
- 2025-10-24 20:02
Title: Some users with edit and full control permissions may be unable to access or share some files in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files, folders, and list items that were deleted and recently restored from the recycle bin. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Additionally, processes that attempt to enumerate permissions on these items may see failures.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: Development of the remaining necessary portions of the overall solution is progressing as we continue internal testing of the completed portion to verify its efficacy to correct the issue. We’ll continue to provide updates as we near the completion of this process and provide a remediation timeline when possible.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some folders in OneDrive that were deleted and recently restored from the recycle bin may be impacted. This information may be updated as our investigation continues.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Monday, October 27, 2025, at 8:00 PM UTC
- 2025-10-22 19:16
Title: Some users with edit and full control permissions may be unable to access or share some content in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some content in OneDrive.
More info: Specifically, this issue impacts files and folders that were deleted and recently restored. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: While we’ve finalized a portion of the necessary code fixes to address the issue, and are validating the effectiveness of this portion, we’re still developing several other portions of overall solution. All portions of the full fix will need to be completed and validated before we begin our deployment process as they are dependent on each other. Once complete, we’ll provide a timeline for deployment and impact remediation as one becomes available.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some content in OneDrive that were deleted and recently restored from the recycle bin may be impacted.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Friday, October 24, 2025, at 8:30 PM UTC
- 2025-10-22 03:11
Title: Some users with edit and full control permissions may be unable to access or share some content in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some content in OneDrive.
More info: Specifically, this issue impacts files and folders that were deleted and recently restored. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: We’ve made progress in the development of a portion of code fixes to address the issue. We’re working to further finalize our remaining code fixes needed to address the full impact before we can provide a full deployment timeline.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some content in OneDrive that were deleted and recently restored from the recycle bin may be impacted.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, October 22, 2025, at 8:30 PM UTC
- 2025-10-21 23:49
Title: Some users with edit and full control permissions may be unable to access or share some content in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some content in OneDrive.
More info: Specifically, this issue impacts files and folders that were deleted and recently restored. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: We’re continuing the development and internal testing of our code fix, and anticipate we may be able to provide an estimated timeline for its deployment by our next scheduled update.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some content in OneDrive that were deleted and recently restored from the recycle bin may be impacted.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, October 22, 2025, at 4:00 AM UTC
- 2025-10-21 20:42
Title: Some users with edit and full control permissions may be unable to access or share some content in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some content in OneDrive.
More info: Specifically, this issue impacts files and folders that were deleted and recently restored. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Site administrators will still have complete access to the content that’s been deleted and restored.
Current status: We’ve identified a recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again. We’re developing a code fix that will undergo internal testing and validations, and we’ll aim to provide a resolution timeline once available.
Scope of impact: Some users with edit and full control permissions who are attempting to access or share some content in OneDrive that were deleted and recently restored from the recycle bin may be impacted.
Start time: Monday, October 13, 2025, at 3:50 PM UTC
Root cause: A recent deployment contains a code regression that introduced a compatibility issue between code that’s preventing items that have been deleted and recently restored from being accessible again.
Next update by: Wednesday, October 22, 2025, at 1:00 AM UTC
- 2025-10-21 20:16
Title: Some users with edit and full control permissions may be unable to access or share some content in Microsoft OneDriveUser impact: Users with edit and full control permissions may be unable to access or share some files in OneDrive.
More info: Specifically, this issue impacts files and folders that were deleted and recently restored. Impacted users attempting to access or share some folders experience failures in sharing and permission operations in OneDrive.
Current status: We’re investigating a potential issue with OneDrive and checking for impact to your organization. We’ll provide an update within 30 minutes.
