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

Fix OneDrive Sync Service Unavailable on Windows 10

You open OneDrive and see 'Sync service unavailable' with no files syncing. This usually means th...

Fix 'Authentication Failed' Errors in Windows Server CMD

When you see 'authentication failed' while running commands in Windows Server's command prompt, i...

Fix Windows Startup Repair Login Loop After Update

You sign in, see "Preparing Windows" or a spinning circle, then get dumped back to the login scre...

How to Install SSL Certificate on Windows Server 2019

You have an SSL certificate file (usually .pfx or .cer) and need to install it on Windows Server ...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...