Which drive boots up first, second, or third?
Thebootsequencesometimes calledBIOS boot sequenceorBIOS boot orderis the order of devices listed inBIOSthat the computer will look for anoperating systemon.
Some devices may instead list something like the optical drive first, but then the hard drive next.
BIOS Setup Utility Boot Menu (CD-ROM Priority).
Do you just want the computer to quit booting to the disc?
You don’t have to change the boot sequence again.
Just remove the installation disc from the disc tray.
What Boot Order Should I Have?
There isn’t a single order that everyone needs to follow all the time.
The order of boot devices depends on your specific situation.
FAQ
The first action to take place is thePOST, which stands for power-on self-test.
POST is the initial set of diagnostic tests the computer performs when powered on.
These tests check for any hardware-related issues.
The key used to do so varies by gear, but is typicallyDELorF2.