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

Fix Microsoft Store Error 0x80073cf0: App Won't Start

When you try to open the Microsoft Store and see error code 0x80073cf0, the app either fails to s...

Remote Desktop Connection Timeout: RDP Port 3389 Not Working

You try to connect to a remote Windows machine via Remote Desktop, but the connection times out. ...

How to Fix Windows Update Blank Screen in Safe Mode

You boot into Safe Mode after a failed Windows Update, but the screen stays blank. This usually m...

Fix OneDrive Sync Error: Port Already Allocated

You see an error message like "OneDrive sync port already allocated configuration" and OneDrive w...

Fix Windows Activation Port Blocked by Another Application

When you see an error like "Windows activation port already blocked by another application," it u...

Fix Windows Activation Command Error 0x80070002