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

MongoDB Compass Cannot Connect to localhost:27017 – Fixes

You open MongoDB Compass, enter localhost:27017, click Connect, and get an error: “c...

Fix 'err tunnel connection failed' on Chrome for Android

You open Chrome on your Android phone and instead of loading a page, you see 'err tunnel connecti...

Fix Error 0x80070643 Windows Update Permission Denied

You see error 0x80070643 when trying to install Windows updates, often accompanied by a message a...

Fix Missing Windows Security Real-Time Protection Toggle

You open Windows Security to check real-time protection and find the toggle is gone. This can hap...

Fix PowerShell DNS Error 0x8007274d: Practical Steps

Fix Windows Defender Error 0x80070422: Won't Turn On

If you see error code 0x80070422 when trying to turn on Windows Defender, it usually means the re...