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 Sync Error 504 Gateway Timeout

If you see a "504 Gateway Timeout" error when Windows Defender tries to sync, it usually means th...

Windows 11 Activation Error: Product Key Blocked – Fixes

You see “Product key blocked” during Windows 11 activation. This usually means the key is tied to...

OneDrive Dependency Conflict Troubleshooting Guide

You open OneDrive and see an error about a missing or conflicting dependency. The app may fail to...

Fix Outlook Connection Timeout After Windows Update

Why Outlook times out after a Windows update

After a Windows update, Outlook may fail to ...

Fix Outlook 502 Bad Gateway Error from Proxy Settings

When Outlook displays a 502 bad gateway error, it usually means a proxy server is interfering wit...