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

Fix Windows Activation Version Mismatch via Command Prompt

If you see an error like "The version of Windows you are trying to activate does not match the pr...

Avoid Windows Activation Version Mismatch on Reinstall

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

How to Avoid npm EACCES Error on Linux

If you see EACCES: permission denied when running npm commands on Linux, it usually ...

PowerShell Refresh Token Expired: Quick Workarounds

When using PowerShell with Azure, Microsoft Graph, or other cloud services, you may encounter a '...

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...

Fix Windows Search 502 Bad Gateway Errors Caused by Firewall Blocks

You open Windows Search, type a query, and get a "502 Bad Gateway" error. This often means a fire...