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

BitLocker Service Unavailable: Troubleshooting Checklist

When you see 'BitLocker service unavailable' or 'The BitLocker service is not available' on Windo...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Fix Windows Defender Network Error After Update

After a Windows Update, you might see a network error in Windows Defender, often with a message l...

Fix Microsoft Teams Sync Issues with Outlook Calendar

You update a meeting in Outlook but Teams doesn’t show the change, or vice versa. This guide cove...

Fix PuTTY Connection Refused After Server Restart

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

How to Fix Windows Security Not Working

Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...