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

Fix Remote Desktop Black Screen After Connection

You connect to a remote PC via Remote Desktop (RDP) and see only a black screen. The cursor moves...

How to Allow an App Through Windows Defender Firewall

If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....

Command Prompt Not Working in Safe Mode: Fixes

You boot into Safe Mode to fix a system problem, but the Command Prompt won't open—either it flas...

Fix Microsoft Store Installation Failed Error Code

When you try to install or update an app from the Microsoft Store, you might see an error code li...

How to Fix '404 Not Found' File Path Errors in CMD

Fix BitLocker NTFS Partition Not Accessible in Ubuntu

If you have a dual-boot system or an external drive encrypted with BitLocker, you may find that U...