How to Fix Windows Security Update Failed Errors
You click 'Check for updates' and after a long wait, you see 'Some updates were not installed' or...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix OneDrive Sync Rate Limit Error and Resume Syncing
If you see a message like 'Sync is paused due to rate limiting' or 'OneDrive sync is not working'...
Fix Windows Search Indexing Stuck or Frozen
When Windows Search indexing gets stuck or frozen, you may notice that file searches return no re...
Fix slui.exe High CPU Usage During Windows Activation
If you notice your CPU pegged at 100% while trying to activate Windows, slui.exe (Software Licens...
How to Fix BitLocker Error 0x80072f8f During Activation
If you see error 0x80072f8f when trying to turn on BitLocker, it usually means the system can't v...
How to Recover Missing Sync Data in Firefox Profiles
You open Firefox after a profile switch or reinstall and your bookmarks, passwords, or open tabs ...
Topic paths
Quick titles
Fix Task Scheduler Authentication Failed After Password ChangeWindows 10 Defender Slow Boot FixChrome Update Connection Refused: Quick FixesTroubleshoot Windows Search Service FailureTroubleshoot Windows Search Indexer and VPN ProxyOneDrive Sync Tuning GuideFix Windows Search Update Error 0x80240034Fix App Installation Error 0x80073cf3 in Windows