Erase Mac not working
Please help me erase my work computer/ do a factory reset.
iMac 24″, macOS 13.2
This is what you do: Create a bootable installer for macOS - Apple Support
But be absolutely certain you make backups first, read the full article, have confidence and skills you can perform the procedure with confidence by utilizing every step that applies to you.
I suggest you also talk to your employer about erasing their property. With my former company, tampering with company equipment was a firing offense. They may have put measures in place to prevent exactly what you're trying to do