How to Fix Persistent OneDrive Failures and Windows Server 2019 Reboot Loops?

Are Critical OneDrive Crashes and Server Reboot Loops Threatening Your Windows Environment in 2025?

Recent reports highlight a surge in disruptive OneDrive crashes and Windows Server 2019 reboot loops, causing significant frustration and downtime for IT professionals and organizations.

OneDrive Crashes on Windows Server 2016

Users have reported repeated OneDrive client crashes, particularly on fully patched Windows Server 2016 systems accessed via Remote Desktop Protocol (RDP). The error code 0xc0000374 (STATUS_HEAP_CORRUPTION) is commonly observed, pointing to memory corruption issues within the application heap, often linked to the ntdll.dll library. This error is typically generic and offers little actionable detail from standard event logs.

Widespread OneDrive Sync Issues

Some users experienced sudden mass deletion notifications, with OneDrive reporting that thousands of files were deleted, only for the files to reappear shortly after without user intervention. These incidents suggest possible backend or synchronization glitches, as confirmed by other users experiencing similar issues during the same period.

Windows Server 2019 Reboot Loops After April 2025 Updates

Administrators have reported servers entering continuous reboot cycles following the April 2025 security updates. In some cases, disconnecting the network interface card (NIC) temporarily resolved the issue, but the root cause remains unclear and unresolved for many.

Key Error Details

OneDrive.exe crash details:

• Faulting application: OneDrive.exe, version 25.60.330.3
• Faulting module: ntdll.dll, version 10.0.14393.7426
• Exception code: 0xc0000374
• Event ID: 1000

Troubleshooting and Solutions

For OneDrive Crashes

1. Check for Updates: Ensure both Windows Server and OneDrive client are fully updated. Outdated software or .NET Framework versions can cause instability.
2. Clear OneDrive and Office Cache: Corrupted cache files can trigger crashes. Delete cache files from the Office Upload Center and restart OneDrive.
3. Review Recent Changes: Consider any recent Windows updates, software installations, or configuration changes that may have introduced instability.
4. Advanced Diagnostics: If basic steps fail, experienced administrators can analyze crash dumps using a debugger to pinpoint the fault.
5. Compare Environments: If the same OneDrive version works on other systems (e.g., Windows 10), the issue may be specific to the server environment or RDP configuration.

For Windows Server 2019 Reboot Loops

1. Disconnect Network Temporarily: Some administrators found that disconnecting the NIC during boot can break the reboot cycle, allowing further troubleshooting.
2. Rollback Updates: If the issue started after a specific update, uninstalling or rolling back the update may restore stability.
3. Engage Microsoft Support: Persistent reboot loops after updates may require direct assistance from Microsoft, as the underlying cause can be complex and system-specific.

For Mass File Deletions or Sync Glitches in OneDrive

1. Wait and Monitor: Some incidents resolved themselves as OneDrive re-synced files without user intervention, indicating a possible backend or temporary sync issue.
2. Check OneDrive Web Interface: Verify file status and integrity directly via the web portal to rule out local client issues.

Best Practices to Avoid Future Issues

• Regularly back up critical server configurations and data.
• Test updates in a staging environment before deploying them to production systems.
• Maintain clear documentation of system changes and updates for easier troubleshooting.

While these issues are undeniably disruptive, most are being actively investigated by Microsoft, and many users have reported eventual resolution-either automatically or through recommended troubleshooting steps. Staying vigilant with updates and proactive maintenance can minimize the impact of such incidents and keep your systems running smoothly.

If you’re experiencing these issues, you’re not alone. Many IT professionals are facing similar challenges, and sharing solutions within the community can help everyone achieve a more stable and reliable environment.