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

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...

Fix 'Permission Denied' When Opening System32 in Command Prompt

How to Fix Remote Desktop Permission Denied Error

You try to connect to a remote PC using Remote Desktop (RDP) and get an error like "The connectio...

Fix Windows Search Settings Not Saving Changes

You change a Windows search setting—like indexing options or search mode—but it reverts after clo...

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 ...

Fix BitLocker Update Error Permission Denied

You try to update Windows, and BitLocker throws a 'permission denied' error. This often happens a...