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

Windows 11 Activation Error: Product Key Blocked – Fixes

You see “Product key blocked” during Windows 11 activation. This usually means the key is tied to...

Windows Terminal Auto-Start Configuration Not Applied: Fixes

You set Windows Terminal to launch automatically when you sign in, but it doesn't start. The sett...

Fix SSH Host Key Verification Failed in VS Code

When using VS Code's Remote SSH extension, you may see an error like "Host key verification faile...

Fix Windows Defender Failed to Start: Registry Repair Steps

When you see “Windows Defender failed to start” or “Windows Defender service terminated unexpecte...

Fix MongoDB Authentication Failed Permission Denied Error