Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Stuck on Loading Black Screen

If Windows Defender (Microsoft Defender Antivirus) hangs on a black screen with a spinning or fro...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Microsoft Teams Auto Start Not Working: Troubleshooting Checklist

You open your PC expecting Microsoft Teams to launch automatically, but it doesn't. This guide wa...

Windows Update Cleanup Stuck? Check Disk Space First

You run Disk Cleanup to remove Windows Update temporary files, but the progress bar sits at 0% or...

Fix slui.exe High CPU Usage During Windows Activation

If you notice your CPU pegged at 100% while trying to activate Windows, slui.exe (Software Licens...

How to Allow an App Through Windows Defender Firewall

If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....