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

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

How to Fix Windows Defender Proxy Error: Step-by-Step Guide

You open Windows Security and see a message like "Proxy server or something is preventing Windows...

Checklist for Debugging 502 Bad Gateway in Command Prompt

You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...

Fix Windows Update Cleanup Stuck During Disk Cleanup

You run Disk Cleanup, select Windows Update Cleanup, and it sits at “Working on it” for hours. Or...

Fix Microsoft Teams File Sync Stuck or Locked Issues

When a file in Microsoft Teams shows as "sync pending" or "locked" and never finishes syncing, it...

Microsoft Store 502 Bad Gateway: Troubleshooting Checklist

You're trying to open Microsoft Store and get a 502 Bad Gateway error. This usua...