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

Fix Microphone Permission Denied in Microsoft Teams

When Microsoft Teams shows a 'microphone permission denied' error, you can't hear yourself in cal...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Microsoft Store Connection Timeout Due to Firewall Settings

You open the Microsoft Store and it hangs on a loading screen, or you get a timeout error when tr...

PowerShell Refresh Token Expired: Quick Workarounds

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

Fix 'Permission Denied' When Running Scripts in Command Prompt

When you try to run a script in Command Prompt and get a 'Permission denied' error, it usually me...

Fixing Certbot Certificate Renewal Failed Error Code

You run certbot renew and get an error code instead of a renewed certificate. This i...