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

Fix Microsoft Teams Screen Sharing Not Working on Ubuntu

Screen sharing in Microsoft Teams on Ubuntu often fails silently—your audience sees a black scree...

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 Defender Proxy Error Not Working

You launch Windows Defender Security Center or try to run a scan, and you see a proxy error—somet...

How Clearing Microsoft Store Cache Can Speed Up Your PC

If your Microsoft Store is running slowly, apps won't download, or you're seeing error codes, a c...

Docker Container Restarting Due to Health Check: Causes and Fixes

Fix Java JDK Not Recognized in Windows 10

You've installed the Java Development Kit (JDK) on Windows 10, but when you type java -vers...