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

Fix Remote Desktop Port Already Allocated on Windows 10

When you try to start Remote Desktop on Windows 10 and see the error 'The specified port is alrea...

Fix Windows Defender Access Denied Error When Running Command Prompt as Admin

When you run a Windows Defender command (like MpCmdRun.exe -Scan -ScanType 2) in Com...

Fix Microsoft Store Login Loop Error 0x80070424

If you're stuck in a login loop on the Microsoft Store and seeing error code 0x80070424, it usual...

Fix Windows Security Service Unavailable After Update

After a Windows update, you might open Windows Security and see a message like “Security service ...

Fix Windows Security Authentication Error 0x80070035

Fix Windows 11 Activation Error 0xc004f074

You see error 0xc004f074 when trying to activate Windows 11. The message usually says something l...