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

How to Fix Chrome Error 12 Update Stuck

If Chrome shows error 12 during an update and the process gets stuck, the update files are likely...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

How to Check Which Process Is Using a Port in PowerShell

When a service fails to start or an application complains that a port is already in use, you need...

How to Fix Windows Defender 504 Gateway Timeout

If you see a '504 Gateway Timeout' error when opening Windows Security or running a scan, Windows...

Fix Outlook Access Denied After Password Change

After changing your account password, Outlook may suddenly throw an “access denied” error when tr...

Fix Microsoft Teams Authentication Loop After Update

After a recent update, you might find Microsoft Teams stuck in an authentication loop—signing in,...