Says no bootable device restart system

@jamiesnider you are not giving us a lot of information here. The "no bootable device" error is usually casued by a failed hard drive. You did nto tell us what exact model you have so we can only be geenral. I suggest you enter the BIOS and then check if your BIOS can still find the HDD. Here you can also set the boot order. Set it to USB and try to start your computer with a bootable USB drive. See if it starts without issues. If so, it's pretty much an issue of a failed HDD on your computer.