Windows Security Troubleshooting Guide
Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PowerShell Assembly Cache Not Updating
You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...
Fix 'Command Not Found' Error in Windows 10 Command Prompt
You type a command in Command Prompt and get 'xxx' is not recognized as an internal or exte...
Fix OneDrive Error 0x8007016a: Cloud File Provider Not Running
OneDrive error 0x8007016a usually appears when you try to open or sync a file. The message says “...
Fix Windows Activation Module Not Found Error
When you see 'Windows activation module not found' while trying to activate Windows, it usually m...
Fix Windows Search Migration Tool Not Indexing Files
If your Windows Search migration tool stops indexing files after a system upgrade or data transfe...
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