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

Fix Microsoft Store SSL Certificate Expired Error

You open the Microsoft Store and see an error about an SSL certificate being expired. The store m...

How to Install PowerShell on Ubuntu

If you need to run PowerShell scripts on Ubuntu, you can install it via Microsoft's official repo...

Fix Command Prompt Restore Backup Error 0x80070002

When using the command prompt to restore a backup, you may encounter error 0x80070002. This error...

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

Fix Windows Defender Sync Not Working on Mac

If you use Windows Defender on your Mac and notice that security settings or scan history aren't ...

Windows Activation 502 Bad Gateway: Step-by-Step Fix

When you try to activate Windows and see a 502 Bad Gateway error, it usually means the activation...