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

Fix Outlook Token Expired Authentication Failed Error

If you see 'token expired' or 'authentication failed' in Outlook, it usually means the app's save...

Fix Microsoft Store Port Error After Reinstall

If you uninstalled and reinstalled the Microsoft Store and now see a port error (e.g., 'Port alre...

How to Fix Windows Update Access Denied Error in Command Prompt

How to Clear Windows Activation Cache Manually

If you see activation errors like “Windows is not activated” or “We can’t activate Windows on thi...

Fix Remote Desktop Proxy Error on Windows 11

When you try to connect to a remote PC via Remote Desktop on Windows 11 and see a proxy error—som...

How to Reduce Windows Security CPU Usage

If your system feels sluggish and you notice high CPU usage from 'Windows Security' or 'Antimalwa...