Fix Windows Activation Service Unavailable Error
You try to activate Windows, but see 'Activation service unavailable' or 'We can't activate Windo...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix 'Permission Denied' Errors in Windows Terminal
When you see "permission denied" in Windows Terminal, it usually means the system or a remote ser...
Fix 504 Gateway Timeout After Windows Update
After installing a recent Windows update, you might see a 504 Gateway Timeout error when browsing...
Fix Windows Defender Connection Timeout Error 0x80070422
If you see error 0x80070422 when opening Windows Defender or running a scan, the message typicall...
How to Fix Chrome Microphone Permission Denied Errors
When you see "Permission denied" for your microphone in Chrome, it usually means the browser can'...
How to Run Windows Defender Offline Scan to Remove Stubborn Malware
If your PC is acting sluggish, showing pop-ups, or Windows Defender keeps finding threats it can'...
Topic paths
Quick titles
How to Fix OneDrive 404 Error When Opening Shared FilesResolve 'Not Recognized' Error in Command PromptWindows Search Service Not Starting Automatically FixBreaking the Windows Terminal Sign-In LoopHow to Set Up BitLocker Without a 404 Not Found ErrorWindows Security Auto-Start Fix GuideResolve Windows Update Connection Refused Due to ProxyTroubleshooting 0x80070057 Update Error