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

Microsoft Store Authentication Failed After Update: Fixes

After a Windows update, you might see "Authentication failed" when trying to sign in to the Micro...

How to Fix PowerShell DNS Errors Not Working

When PowerShell throws a DNS error and stops working, it usually means a name resolution failure....

Check Which Process Is Using a Port on Windows

When a service or application fails to start because a port is already in use, you need to identi...

MongoDB Compass Connection Refused Due to Firewall: Fixes

You open MongoDB Compass, enter your connection string, and get connect ECONNREFUSED...

How to Fix PowerShell Blank Screen on Startup

When PowerShell opens to a blank screen with no prompt or output, the shell is usually loading a ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...