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

How to Clear Windows Security Threat History That Won't Delete

You've resolved a virus or malware issue, but the threat history in Windows Security still shows ...

How to Fix Windows Security Not Working on Ubuntu

You're running Ubuntu and see an error that Windows Security isn't working. This usually happens ...

Fix Task Scheduler Blank Screen: No Tasks Showing

You open Task Scheduler to manage your automated tasks, but the task list is empty—just a blank w...

Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...

Fixing Microsoft Teams Rate Limit Error When Sending Messages

How to Fix 502 Bad Gateway in Command Prompt

If you see a 502 Bad Gateway error while using command prompt—for instance when ...