Fix Windows Update Cleanup Stuck Error 0x80070002
When running Disk Cleanup or the Windows Update troubleshooter, you might see error 0x80070002 an...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWindows Security Not Opening? Fix It Here
If Windows Security won't open—clicking the icon or searching for it does nothing—you're not alon...
Fix Windows Activation Failed After Update
After a Windows update, you might see an activation error like "Windows failed to start" or "Acti...
Fix Windows Activation Error: DNS Name Does Not Exist
When you try to activate Windows and see an error that the DNS name does not exist, it usually me...
Fix Windows 10 Task Scheduler High Memory Usage
If you notice that Task Scheduler (taskhostw.exe or TaskScheduler.dll) is using an unexpectedly h...
Fix Windows Security Not Starting After Update
After a Windows update, you might find that Windows Security won't open, or it shows a blank wind...
Issue queue
SitemapTroubleshoot Windows Update Certificate Error After Changing Clock
Fix Microsoft Store Log File Not Opening
Troubleshoot Locked File Error 0x80070020
Fix OneDrive Sync on Mac: Reset Guide
Enable Windows Defender Automatic Startup in Registry
Port Already Allocated Error in Windows 10 Scheduled Tasks
Fix Proxy Configuration Blocking Windows Defender
Fix Remote Desktop Error 0x104: Licensing Guide
Windows 11: Turn On Windows Defender
How to Fix Outlook Module Not Found Error
Troubleshooting Microsoft Store Startup Errors
How to Fix Windows Activation Failed to Start Windows 10
Fix Microsoft Store Log File Not Opening
Troubleshoot Locked File Error 0x80070020
Fix OneDrive Sync on Mac: Reset Guide
Enable Windows Defender Automatic Startup in Registry
Port Already Allocated Error in Windows 10 Scheduled Tasks
Fix Proxy Configuration Blocking Windows Defender
Fix Remote Desktop Error 0x104: Licensing Guide
Windows 11: Turn On Windows Defender
How to Fix Outlook Module Not Found Error
Troubleshooting Microsoft Store Startup Errors
How to Fix Windows Activation Failed to Start Windows 10