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.
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How old is the Motherboard? Did you ever change your bios battery if its super old? Did you already reinstall windows? Did you do a bios update recently?
That's a 4770k, so the CPU is from ~2014, so the motherboard is probably similar vintage.
And ddr3 ram with 1600mhz. I would guess then the motherboard battery is just super weak.
That's a common indication that the CMOS battery is dead.
If you open up the system and look around the motherboard, there should be a coin cell battery in a holder somewhere on the board. That battery keeps the BIOS powered and prevents it from losing it settings when the system is powered off. Test and replace that battery if it's dead.
Oh that's a small fix. Thanks for the help :)
This. I had a similar thing happen to a laptop, and it was indeed the CMOS battery.