Chosen Solution

My Toshiba laptop updated Windows Updates and did a restart. Now it will not boot up. Keeps asking for a boot device.

Hi @carmi01, suggest you access your laptop BIOS and check if the Hard Disk is detected. If the hard disk is detected, proceed to test your HDD. Some possibility is either the OS update caused it to be corrupted or HDD might be failing

Try to reinstall Windows it will be Fixed.