Question PC will not reboot unless mouse and keyboard are connected

Jul 10, 2021
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Hello.

My Windows 10 PC will not reboot UNLESS I attach a keyboard and mouse. As it's designed to be a headless music server this is not good.

If I reboot without a USB mouse and keyboard connected I get:

"Error 1962. No operating system found."

But as I say, it bots fine if the mouse and keyboard are connected.

I've checked boot order and ensured that the system disk is the first device listed. I've now I've no idea what else to do.

It's an American Megatrends board with Lenovo BIOS setup utility dated 2013.

Any help appreciated.