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

Fixing Microsoft Teams Rate Limit Error When Sending Messages

Why Command Prompt Stuck on Opening? Fixes to Try

You double-click Command Prompt, the window appears briefly, then vanishes — or it just hangs wit...

Fix Microsoft Teams Not Detecting External Webcam

You plug in your external webcam, open Microsoft Teams, and the video feed stays black or shows t...

Fix Task Scheduler 'Module Not Found' and 'Permission Denied' Errors

When you schedule a task in Windows Task Scheduler and get errors like 'module not found' or 'per...

Fix Microsoft Teams 502 Bad Gateway Due to Network Config

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means you...

Fix Windows Defender Error 0x80070643 – Version Mismatch

You update Windows Defender and see error code 0x80070643. The update fails, and Defender may dis...