Fix 'File Locked by Unknown Process' in Command Prompt
You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Outlook Authentication Failed Error 0x80048820
When Outlook repeatedly prompts for credentials or shows authentication failed error 0x80...
Fix Outlook Data File Sync Error: Cannot Access
You try to open Outlook and get a message that the data file cannot be accessed due to a sync iss...
Fix Windows Security 404 Not Found Permissions Issue
You open Windows Security and see a 404 Not Found error, or the app won't load at all. Often this...
Fix Windows Activation Auto-Start Service Stuck
You go to activate Windows, but the activation window just hangs or shows "Checking..." indefinit...
Fix Windows Update Cleanup Stuck Waiting for Other Updates
If you're running Disk Cleanup and it hangs at 'Windows Update Cleanup' with a message that it is...
Topic paths
Quick titles
Fix Chrome Crash 0xc0000005 on WindowsHow to Reset Windows Update Components for Error 0x80070005Resolve SSL Certificate Error in Windows ActivationFix 'The system cannot find the path specified' in CMDOneDrive Error 0x8004de40: Service Unavailable FixHow to Reset Microsoft Teams Without Losing DataFix '404 Not Found' Error in Windows 10 Command PromptHow to Fix BitLocker Update Error on Windows 11