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

How to Fix 'ERR_TUNNEL_CONNECTION_FAILED' on Chrome for Mac

If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome on your Mac, it usually means ...

Fix Windows Defender Configuration Not Working Properly

When Windows Defender (Microsoft Defender Antivirus) configuration doesn't work properly, you mig...

Fix Windows Update Error 0x80070020: Port Already Allocated

When you see error 0x80070020 during a Windows Update, it usually means a program is already usin...

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Fix PowerShell Not Launching from Start Menu

When you click PowerShell in the Start Menu and nothing happens, or it flashes and closes, it's u...

Fix OneDrive Sync Rate Limit Error: Step-by-Step Guide

If you see an error like “Sync is paused due to high activity” or “Rate limit exceeded” in OneDri...