Fix Windows Activation Error 0x80070005 504
You try to activate Windows and see error code 0x80070005 with a trailing 504. This usually means...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Firefox Not Responding When Opening a New Tab
You click the new tab button (or press Ctrl+T) and Firefox freezes, goes white, or shows a spinni...
Where Windows Defender Stores Its Cache Files
If Windows Defender (now Microsoft Defender Antivirus) won't update definitions, hangs during sca...
How to Fix Chrome Browser Not Opening on Windows and Mac
When Chrome fails to open, you might see nothing happen after double-clicking the icon, or a brie...
MongoDB Authentication Failed Error 18: Causes and Fixes
When you see MongoDB AuthenticationFailed (error code 18), it means the server r...
Fix Windows Terminal Auth Token Expired Error
If you see an authentication token expired error in Windows Terminal, it usually means your Azure...
Topic paths
Quick titles
Beginner's Outlook Setup WalkthroughTroubleshoot pip install tensorflow ErrorResolve BitLocker Freeze During Boot on Solid State and Hard DrivesTroubleshoot Windows Defender Connection RefusedChrome Profile Authentication Failed: Delete and Recreate ProfileFix Windows Defender Can't Connect After UpdateOutlook DNS Error After Update: Troubleshooting GuideLocate Outlook.log Files for Troubleshooting