Windows 10: No bootable device — please restart system error message

Hi I was stupid and snooping around my computer to see why my ram was capping at 8gbs I just installed 36gb to I pressed windows+r to get the run windows and typed in Msconfig and checked off the maximum ram box then I saw the number of processors box and saw it was grayed out saying 1 so I checked to box to change it and pressed 12 processors and restarted my pc then got a blue error sign and troubleshoot screen everything I tried would fail so I hard shut down my pc and it brings me to my bios so I press continue and it just says “No bootable device - - please restart system” I have tried

:)

 

Bootable device not found

computer is not booting a black screen come
up with this message bootable device not found i have properly attached my all cables even then my bios show that sata ports empty no hdd found

 

Ipod bootable drive?

I want to know if I can make my ipod a usb bootable drive.. will it mess up my ipod? I need to flash my video card back to normal.. Neros bootable cd gave me an error. I used a step by step guide, but thats another story.

 

No bootable device _ please restart system

After I installed Windows 10 Professional, my PC continues to shut down when I leave it unattended. A blue screen comes on and claims it is gathering information. After a period of time, the unit reports the error message _ No bootable device _ please restart
system.

Can you help?