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

How to Fix Windows Security Auto Start Disabled

If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...

Fix Windows Security Blank Screen in Safe Mode

If you boot into Safe Mode and open Windows Security only to see a blank white or gray screen, yo...

Fix Chrome 'Connection Refused' Error from Firewall Block

When you see "This site can’t be reached – connection refused" in Chrome, it often means somethin...

Fix Chrome Profile Error and Sync Disabled

You open Chrome and see a message like 'Profile error occurred' and sync is disabled. This often ...

How to Fix Microsoft Teams Audio Not Working on Ubuntu

If you're using Microsoft Teams on Ubuntu and the audio isn't working—no sound during calls, micr...

How to Fix '404 Not Found' Error in Windows Command Prompt