Fix SSL Certificate Errors in Windows Search
When Windows Search throws an SSL certificate error—often as 'The certificate is not valid' or 'A...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix a File Locked by Windows Security in Windows 10
You try to open or run a file, and Windows Security blocks it with a message like "Windows protec...
How to Fix 'Windows Defender Module Not Found' Error
If you see 'Windows Defender module not found' when trying to open Windows Security or run a scan...
Chrome Profile Setup Steps for New User
When you share a computer or want to separate work from personal browsing, setting up a new Chrom...
Fix 'Windows Defender Not Recognized' Error in Command Prompt
When you type MpCmdRun or Windows Defender in Command Prompt and see
Fix Chrome Profile Error: Cache Corruption
You open Chrome and see an error like "Your profile could not be opened correctly" or "The profil...
Topic paths
Quick titles
PowerShell Remoting Connection Refused TroubleshootingHow to Fix Microsoft Store 502 Bad Gateway ErrorResolve BitLocker 502 Bad Gateway When Retrieving KeyMicrosoft Store Download 504 Error FixFix Outlook Port Already Allocated Error 0x800ccc0eWindows Security App Missing in Windows 11: How to Restore ItWindows 10 Activation Access Denied FixHow to Fix Command Prompt Invalid Configuration Error