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

Fix Windows Security High Memory Usage

If you notice that Windows Security (formerly Windows Defender) is using a lot of memory—sometime...

Fix Windows Search Port Already Allocated Error

When you see "port already allocated" while using Windows Search, it usually means another proces...

How to Fix 'Clear Windows Security Cache Permission Denied'

When you try to clear the Windows security cache—often to fix authentication issues or credential...

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...

Fix Command Prompt Not Working After Windows Update

After a Windows update, you might click Command Prompt and nothing happens—or it opens and closes...

Fix Windows Search Authentication Failed Error 0x80070005

When Windows Search fails with error code 0x80070005 and an "authentication failed" message, it u...