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

Fix Windows Store Error 0x80073cf9: Clear Cache & Repair

You try to install or update an app from the Microsoft Store, and you get error 0x80073cf9. Usual...

How to Fix High Memory Usage by cmd.exe

If you notice that cmd.exe is using a lot of memory—sometimes hundreds of megabytes—it's usually ...

Where to Find Windows Terminal Settings File

If you've customized Windows Terminal and want to back up your settings or troubleshoot a configu...

Fix Outlook Port Already Allocated in Exchange Server

When Outlook cannot connect to Exchange Server and you see an error like “Port already allocated”...

Fix MongoDB Authentication Failed Permission Denied Error