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

Fix Windows Update 404 Not Found Error on Windows 10

When you run Windows Update and get a "404 Not Found" error, it usually means the update server c...

How to Fix Remote Desktop Authentication Errors

You try to connect via Remote Desktop and see an error like "An authentication error has occurred...

How to Configure Windows Defender Firewall Settings for a Network

If you're having trouble with network connectivity or need to allow an app through the firewall, ...

Fix Command Prompt Sync Issue with System Clock

Fix Task Scheduler 'Access Denied' When Running as Admin

You set a Task Scheduler task to run with highest privileges (administrator), but it fails with a...

Check Which Application Is Using Remote Desktop Port (3389)

When you try to start Remote Desktop and get an error that the port is already in use, something ...