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

How to Fix Windows Security Certificate Error Not Trusted

You're browsing or running an app and Windows throws a security warning: the certificate is not t...

Windows Update Dependency Conflict Cleanup Checklist

You run Windows Update, it fails, and the error mentions a dependency conflict. This usually mean...

Fix Microsoft Store Sync Issues After a Failed Start

If Microsoft Store fails to start and then won't sync your apps or settings, you're likely dealin...

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 Windows Security Authentication Error 0x80070035

Cloudflare Full Strict SSL Not Working: Fixes and Checks

If you've set Cloudflare's SSL/TLS encryption mode to Full (Strict) and see errors like E...