How to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...
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3. Apply
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View listFix Command Prompt Service Unavailable Error
When you open Command Prompt and see 'Service unavailable' or 'The requested service is unavailab...
Fix Command Prompt Connection Timeout Errors
When you see a connection timeout error in Command Prompt—often with messages like 'Request timed...
How to Fix Chrome SSL Protocol Error: Invalid Server Certificate
You try to visit a website in Chrome and see an error: "SSL protocol error" with "invalid server ...
Fix Windows Security 'Permission Denied' Error When Settings Won't Open
You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...
How to Fix Chrome Browser Invalid Configuration Error
You open Chrome and see an error message saying the configuration is invalid, or Chrome refuses t...
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Sync Update Causing High Memory in ChromeFix Chrome Profile Module Not Found ErrorTroubleshooting 502 Bad Gateway During Windows ActivationHow to Fix Task Scheduler Backup Error CodesSlow Windows Defender Windows 11 TroubleshootingHow to Fix Store Sync Module MissingTroubleshoot OneDrive Port Allocation ErrorTask Scheduler 'Run Whether User Is Logged On' Fix