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

Fix Windows Defender Update Error 0x80070490 on Windows 11

If you see error 0x80070490 when trying to update Windows Defender on Windows 11, it usually mean...

Fix Windows Activation Service Unavailable Without Product Key

You see 'Windows activation service unavailable' and you don't have the product key. This usually...

How to Fix Microsoft Store Proxy Error

You open Microsoft Store and see a message like ‘Proxy server isn’t working’ or ‘Check your proxy...

Install NuGet Provider Manually Without Internet

How to Fix Windows Update Stuck at Checking for Updates

You open Windows Update, and it sits on “Checking for updates” for 30 minutes or more. This is a ...

How to Unlock BitLocker Drive in Ubuntu Terminal

If you have a BitLocker-encrypted drive from Windows and need to access it in Ubuntu, the termina...