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

Fix Node Version Mismatch with nvm

You install a project, run npm install, and get a cryptic error about an incompatibl...

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Fix PowerShell Execution Policy Permission Denied Error

When you try to run a PowerShell script and get a 'permission denied' error, it's often because t...

Fix Cloudflare DNS Not Resolving on Android

If you've set Cloudflare's 1.1.1.1 DNS on your Android device but websites won't load or you see ...

Fix Chrome Proxy Error After Update: Step-by-Step Guide

After a Chrome update, you might see a proxy error message like "ERR_PROXY_CONNECTION_FAILED" or ...

MongoDB Authentication Failed: Causes and Fixes

You try to connect to MongoDB and get "Authentication failed" or similar error. This usually happ...