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

Fix Windows Defender Real-Time Protection Stuck on Scanning

If Windows Defender's real-time protection appears stuck on 'Scanning' and never completes, it ca...

Check Which Process Locked a File Using PowerShell

When you try to delete, move, or rename a file and get an error like "File in use" or "Access den...

How to Fix PowerShell 502 Bad Gateway Error

When you run a PowerShell command that calls a web service (like Invoke-RestMethod o...

How to Fix WinRAR Checksum Error and Configuration Settings

If you see a 'Checksum error' or 'CRC failed' message in WinRAR, the archive is likely damaged or...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

How to Fix Outlook Access Denied Error

When Outlook throws an 'access denied' error, it usually means the application can't reach your d...