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

How to Fix PowerShell Port Already Allocated Error

When you try to start a TCP listener or run a script that binds to a specific port in PowerShell,...

Fix Microsoft Teams Audio Device Connection Issues

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

Fix Windows Activation Stuck on 'Activating'

You see 'Activating' in Settings > System > Activation, but it never finishes. This is a common g...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

Fix 'Token Expired Permission Denied' in Microsoft Teams

You're working in Microsoft Teams and suddenly you can't access a channel, send a message, or ope...

How to Fix Command Prompt High CPU and Memory Usage

You open Task Manager and see Command Prompt (cmd.exe) consuming a large percentage of CPU or a l...