Fix Windows Defender Service Not Running
If you see "Windows Defender service not running" or a red warning in Security Center, the underl...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Update Service Not Running on Startup
If your PC gets stuck in an automatic repair loop and the Windows Update service is not running o...
Fix Microsoft Store Blank Screen After Reinstalling App
If you've reinstalled an app from the Microsoft Store and now see a blank screen when opening the...
Fix Windows Update Error 0x800f0922: Pending Install Failed
You see a message that a Windows update is pending install, but it fails with error 0x800f0922. T...
How to Fix a 502 Bad Gateway in Chrome by Clearing Cache
If you see a 502 Bad Gateway error in Chrome, it usually means the server you're...
Fix Windows Activation SSL Certificate Error Not Working
You're trying to activate Windows, but you see an SSL certificate error and activation fails. Thi...
Topic paths
Quick titles
Troubleshooting Chrome Blank Screen IssuesHow to Manually Trigger OneDrive Sync on WindowsChrome Won't Start After Antivirus Install: Quick FixesFix Chrome Profile Corruption Without Losing DataFix Windows Activation Service Unavailable ErrorFix Windows Update Command Not Found ErrorMicrosoft Teams Token Expired Error Code TroubleshootingWindows Security App Not Showing Fix