Fix Windows Activation Command Not Found or Permission Denied
When trying to activate Windows using the command line (slmgr.vbs or slui), you might see errors ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome 504 Gateway Timeout After Update
After a recent Chrome update, you may see a 504 Gateway Timeout error when tryin...
How to Fix Windows Update Stuck on Loading Black Screen
You start your PC, see the Windows logo, then it goes black with a spinning circle that never end...
Outlook 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 bad gateway error in Outlook, it usually means the server gateway is misconfigur...
Troubleshoot 504 Gateway Timeout in Windows Security App
When you open Windows Security (formerly Windows Defender Security Center) and see a 504 ...
Fix 'Windows Activation Service Not Starting' Permission Denied
When you see "Windows Activation Service not starting" with a "permission denied" error, the serv...
Topic paths
Quick titles
Microsoft Teams Restore Sync Issues GuideWindows 10 Activation Error 0xc004f074: DNS Fix GuideFix Windows Security Error Code Mac Boot CampOutlook Troubleshooting Log File ChecklistResolve Windows Search Connection and Permission IssuesTroubleshooting Teams Microphone Issues During CallsGitHub Actions SSH Key Permission Denied TroubleshootingShould You Disable BitLocker for Better Performance?