You mean POST, Power on self test. DOS hasn’t been a part of Windows since XP. And yeah replace the Knopfzelle (usually a CR2032) on your mobo. Your mobo is resetting everytime you power off cause the mobo isn’t getting any power. That’s what the battery is for.

On a rollercoaster ride where you had to wear VR headsets. Didn’t notice they weren’t in my shirt anymore untill I was outside.

Just call the helpdesk. They’re payed to solve problems at work