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

Fix Windows Security High CPU Usage at Idle

If your system fan is spinning up or Task Manager shows Windows Security (Antimalware Service Exe...

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

How to Fix Task Scheduler Error 0x80041315

When you see Task Scheduler error 0x80041315, it usually means a scheduled task is corrupted or m...

Complete Windows Security Setup Checklist

If you're setting up a new Windows machine or hardening an existing one, this checklist covers th...

Outlook 404 Not Found on Shared Mailbox: Fixes & Checks

You try to open a shared mailbox in Outlook and see a 404 Not Found error. This usually means Out...

Windows Terminal Blank Screen: Diagnostic Checklist

You launch Windows Terminal and see nothing but a blank window—no cursor, no prompt, just an empt...