Fix Windows Update Authentication Failed Due to Group Policy
You try to run Windows Update and get an error like "Authentication failed" or "0x80070005" – and...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Rate Limit Errors in Windows Security App
You open Windows Security to run a scan or check protection status, and get a rate limit error. T...
Fix Chrome Profile Dependency Conflict Not Opening
You click the Chrome icon, but nothing happens. Or you see a brief flash and then nothing. A comm...
Fix OneDrive Sync Error 0x8004de40 on Ubuntu
If you see error 0x8004de40 when syncing OneDrive on Ubuntu, the sync client usually fails to aut...
Windows Defender Setup Checklist for New PC
When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...
Fix 'Windows Update File Locked by Another Program' Error
When running Windows Update, you may see an error like "The file is locked by another program...
Topic paths
Quick titles
Windows Terminal Error 0x80070002 FixTask Scheduler Tasks Disappear on RestartReset Ubuntu Terminal Prompt to DefaultFind Windows Search Indexer Log FilesStop Chrome Profile Crashes: Quick FixesTroubleshoot Remote Desktop Update ProblemsWhy Windows Search Can't Find Files in a FolderFix Redirect Loop with Cloudflare Flexible SSL