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

SSH Connection Timed Out After Successful Authentication: Fixes

You've successfully authenticated to an SSH server, but the connection drops or times out shortly...

Fix PuTTY Connection Refused: Check SSH Service

When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

Windows Defender File Locked: How to Fix It

You try to edit, move, or delete a file and Windows says it's open in Windows Defender. This can ...

Fix Remote Desktop 404 Not Found After Windows Update

After a recent Windows update, you might see a '404 Not Found' error when trying to connect to a ...

Change Windows Update Port to Fix 'Already Allocated' Error

When you see "port already allocated" during Windows Update, it usually means an...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...