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

Fix Windows Activation Authentication Failed: Invalid Product Key

You see "Windows activation authentication failed" or "product key not valid" when trying to acti...

Fix Windows Defender Authentication Failed After Update

After a recent Windows update, you might see an error like "Authentication failed" when trying to...

How to Fix Chrome Profile Slow Performance

Common Causes of a Slow Chrome Profile

If Chrome feels sluggish only when you’re signed i...

Fix VSCode Debugger 'launch.json Not Found' Error

You open the Run and Debug view in VSCode, click the green play button, and get an error: "launch...

Systemd Service Not Starting After Reboot: Practical Fixes

You've set up a systemd service, it runs fine when you start it manually, but after a reboot it s...