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

How to Fix BitLocker File Locked Error

When you see a "file locked" error with BitLocker, it usually means the drive is encrypted but so...

Fix Putty Connection Refused on Port 22

You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

Fix Firefox Not Responding After Update: Practical Steps

After a Firefox update, some users find the browser becomes unresponsive—crashes, freezes, or won...

Fix Windows Update Connection Timeout Due to Firewall

If Windows Update fails with a connection timeout error, the problem is often in your firewall or...

Fix Microsoft Teams Audio Device Connection Issues

If Teams shows 'cannot connect to audio devices' or your microphone, speakers, or headset aren't ...