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

Chrome Extension Not Working After Update: Fixes

You update Chrome, and suddenly a favorite extension stops working—buttons missing, features gray...

Fix Windows Activation 504 Gateway Timeout Error

You try to activate Windows, but get a '504 Gateway Timeout' error. This usually means the activa...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Fix Chrome Sync Error 0x80040201 – Step-by-Step Guide

You try to sign in to Chrome or start syncing, but you get error code 0x80040201. Bookmarks, pass...

How to Fix Windows Search Access Denied Error

If you see an "Access Denied" error when using Windows Search, it usually means the search indexe...

Fix 'Port Already Allocated' Error in Windows Defender

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...