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

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...

Fix Windows Defender Threat Service Not Running Error

You open Windows Security and see a yellow warning: “Threat service has stopped. Restart it now.”...

How to Fix '404 Not Found' File Path Errors in CMD

How to Fix SSL Protocol Error in Chrome: Practical Steps

You're browsing in Chrome and suddenly see "SSL protocol error" or "ERR_SSL_PROTOCOL_ERROR." The ...

Fix OneDrive Sync Permission Denied Error

You see a 'permission denied' error when OneDrive tries to sync files. This usually means the app...

How to Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed to...