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

How to Fix Windows Defender File Locked Error 0x80070020

Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...

PowerShell on Ubuntu 22.04: Setup Checklist

If you're setting up PowerShell on Ubuntu 22.04, you might hit errors like 'command not found' or...

Fix Microsoft Store Connection Refused DNS Error

When you open Microsoft Store and see a 'connection refused' error, it's often a DNS problem. You...

Fix Windows Terminal Certificate Error After Update

After a Windows update, Windows Terminal may show a certificate error when starting. This typical...

Fix Windows Defender Proxy Error: Permission Denied