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

Systemd Service Fails to Start After System Update: Fixes

After a system update, you might find that a custom or third-party service fails to start. This i...

How to Fix Remote Desktop Authentication Errors

When you see a remote desktop authentication error, it usually means the connection failed becaus...

How to Rearm Windows Activation Grace Period

When Windows is not activated, you have a limited time (typically 30 days) before it starts showi...

How to Fix systemd Service Restarting Repeatedly Error

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

VS Code Terminal Not Opening: Practical Fixes

When you click the terminal panel in VS Code and nothing appears, or it opens briefly then closes...