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

Kubernetes Pod CrashLoopBackOff: Troubleshooting Checklist

You deploy a pod, and it starts restarting repeatedly. `kubectl get pods` shows `CrashLoopBackOff...

How to Clear Windows Activation Cache Manually

If you see activation errors like “Windows is not activated” or “We can’t activate Windows on thi...

How to Fix Cloudflare DNS Not Resolving on Mac

If you've set Cloudflare DNS (1.1.1.1) on your Mac but websites still fail to load or resolve slo...

Fix Maven Dependency Resolution Failed in IntelliJ

Fix Microsoft Store Blank Screen After Reinstalling App

If you've reinstalled an app from the Microsoft Store and now see a blank screen when opening the...

Fix Microsoft Teams Token Expired Error

You're working in Microsoft Teams when a message pops up: "Your token has expired" or "Authentica...