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

Set Windows Defender Threat Service to Automatic Startup

If Windows Defender is not running or you see errors like “Threat service has stopped,” the under...

Windows Defender Scan Stuck at Certain Percentage: Fixes That Work

If you run a Windows Defender scan and it stalls at the same percentage every time—often 85%, 93%...

How to Fix WinRAR Checksum Error and Repair Corrupted Files

You download a large RAR archive, double-click to extract, and get a "Checksum error" or "CRC fai...

Fix Windows Defender 504 Gateway Timeout Configuration Error

When you see a 504 Gateway Timeout error in Windows Defender, it usually means t...

How to Fix Microsoft Store Proxy Error on Windows 10

If you see 'Proxy server isn't responding' or similar proxy errors when opening the Microsoft Sto...

Fix Microsoft Store 404 Not Found Error on Reinstall