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

Configuring Windows Defender for Ubuntu Dual-Boot Systems

If you dual-boot Windows and Ubuntu, Windows Defender may flag Linux partitions, boot files, or t...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Fix Windows Terminal File Locked Error 0x80070020

When you try to open a file in Windows Terminal and get error 0x80070020, it usually means the fi...

Outlook Sync Issues After Setup: Practical Fixes

After setting up Outlook for the first time or reconfiguring an account, sync issues can appear—e...

Fix PowerShell Stuck on Loading PowerShell 7

You launch PowerShell 7, and the window shows “Loading PowerShell 7” indefinitely. The prompt nev...

Fix PowerShell Token Expired Error 401

If you're seeing a 401 status code with a message like "token expired" in PowerShell, it usually ...