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

Fix PowerShell 404 Not Found When Downloading File

You run an Invoke-WebRequest or Start-BitsTransfer command in PowerShel...

How to Fix Outlook Blank Screen on Startup

When you open Outlook and see only a blank screen—no folders, no email list, just gray or white—i...

Fix Windows Defender 502 Bad Gateway: Tool Usage Tips

When Windows Defender returns a 502 Bad Gateway error, it usually means the security intelligence...

Fix Command Prompt Sync Issue with System Clock

Windows Search 504 Gateway Timeout: Troubleshooting Checklist

When Windows Search returns a 504 gateway timeout, it usually means the search service or its bac...

Fix Windows Defender Not Starting After Update

After a Windows update, you might see that Windows Defender (now called Microsoft Defender Antivi...