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

Fix Windows Defender Service Not Running

If you see "Windows Defender service not running" or a red warning in Security Center, the underl...

How to Run Command Prompt as Administrator

Many Windows commands require administrator privileges. If you try to run a command that needs el...

Remote Desktop Blank Screen: Step-by-Step Troubleshooting Checklist

You connect to a remote machine, authentication succeeds, but instead of a desktop you get a blan...

How to Fix Windows Update That Failed to Install Manually

You click 'Install now' on a Windows update, wait through the progress bar, and then see 'Update ...

Fix Chrome Error STATUS_ACCESS_VIOLATION