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

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

Fix OneDrive Sync Offline Installer Stuck at Downloading

You're trying to run the OneDrive sync offline installer, but it gets stuck at 'Downloading' and ...

Fix Chrome Tunnel Connection Failed: Network Config Guide

When Chrome shows 'tunnel connection failed' or 'ERR_TUNNEL_CONNECTION_FAILED', it usually means ...

Fix BitLocker Path Not Found on External Drive

When you connect a BitLocker-encrypted external drive and see "path not found" or "The system can...

How to Fix Windows Defender Scanning Taking Too Long

If Windows Defender (Microsoft Defender Antivirus) scans are taking unusually long—sometimes hour...

Fix Command Prompt Service Unavailable After Update