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

Fix Remote Desktop Port Already Allocated Error

When you try to start Remote Desktop (RDP) or change its listening port, you may see an error lik...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

Fix 'Port Already in Use' Error When No Process Shows

You try to launch Chrome or a Chrome-based tool (like Puppeteer, Selenium, or a local dev server)...

Fix Windows Update Error 0x80070002

When Windows Update fails with error 0x80070002, it usually means the update installer can't find...

Microsoft Teams Service Unavailable on Mac: How to Fix

When Microsoft Teams shows a 'service unavailable' error on your Mac, it usually means the app ca...

Windows Update Stuck on Blank Screen: How to Fix

You restart your PC to install updates, but instead of a progress bar, you get a blank screen tha...