Knowledge base for software setup, errors, and daily tool work.

Outlook for Mac Sync Issues with Exchange Server: Fixes

Outlook for Mac may stop syncing with Exchange Server due to profile corruption, network issues, ...

Fix Windows Defender Login Loop on Windows 10

If Windows Defender keeps asking you to sign in repeatedly on Windows 10, even after you enter co...

Fix 'UFW Status Shows Port Not Active' Error

You run sudo ufw status and see a rule for a port, but the port isn't actually activ...

Fix Windows Search Proxy Error 0x80070490

If you see error 0x80070490 when using Windows Search, it usually means a system component is mis...

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...

Fix Windows Security Authentication Error 0x80070035