Checklists for software errors, setup, and tool workflows.

Check for Malware When Windows Activation Causes High CPU Usage

If your computer's CPU usage spikes after a Windows activation attempt, malware may be the culpri...

Fix Windows Search Service Permission Denied Error

You might see a 'permission denied' error when Windows Search fails to index files or when you tr...

Fix Remote Desktop Blank Screen and Disconnect Issues

You connect to a remote desktop, see only a black or blank screen, and then the session drops. Th...

Fix Microsoft Store After Changing Network

If you recently changed your network—switched Wi-Fi, moved to a new ISP, or updated router settin...

Fix Windows Search 504 Gateway Timeout via Registry

If you see a 504 Gateway Timeout error when using Windows Search, it usually mea...

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" ...