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

Fix Windows Security Error 0x80073b01: App Install Blocked

When you try to install a Windows app from the Microsoft Store, you might see error code 0x80073b...

Fix Microsoft Teams 502 Bad Gateway from Proxy Settings

If you see a 502 Bad Gateway error in Microsoft Teams, it often points to a proxy or network conf...

How to Fix a Blank Screen During Windows Update

You’re waiting for a Windows update to finish, and suddenly the screen goes black. The monitor is...

Fix Command Prompt Permission Denied Error in Windows 11

When you see a 'permission denied' or 'access denied' error in Command Prompt on Windows 11, it u...

How to Fix Command Prompt Rate Limit Error on Network