How is this boot sequence work at a computer

United States
October 26, 2010 3:32pm CST
Okay, if I have an external hard drive connected to the USB port, or a removable drive connect to my computer, when I turn it on, the Windows won't boot up normally. So, I have to disconnect all these external hard drive storage beforehand. So, on my boot sequence, the normal procedure should be when the Rom software check the existence of all hardware devices, the task should be relayed to Windows. According to the sequence, the system should check the internal hard drive as I specified it on the first rank, then the CD - ROM drive, etc...... My question is, when I have an external drive connect to the system, the external hard drive was assumed to be primary drive to check on first? How does it work?
4 responses
@saqi78 (1405)
• Malaysia
26 Oct 10
How an external hard drive be your primary hard drive, I think primary hard drive is the drive on which your operating system is installed and mostly it is drive C And these options are always in the setup when you turn on your computer, you can change them by pressing F2 or any other F function written when you start your computer, then change boot sequence like hard drive, cd rom, and external harddrive, floppy etc. And never forget to save changes and exit... Have a good day
• United States
26 Oct 10
I knew all that. But that is not what I am asking Mister. Please read my post carefully. I was asking how come my external hard drive connected to the system which also prevent the system boot up the Windows. Should that system follow the boot sequence already set up within, and look into the C: which is the internal hard drive first?
@sajeevking (5080)
• Mumbai, India
28 Oct 10
well you are not required to remove your external hard disk as well as removable drive while booting you just need to make change in bios which tell you pc the primary boot device restrat your pc and keep on pressind delete then you would enter your bios go to the menu boot there change the first boot device to internal hard disk if you want you can even keep the 2nd boot device to internal hard disk in case it didn'e load the first time well it would work i uses to have my dvd drive as 1 boot device which use to take some time to load as bios first check in dvd drive then my hard disk changing that made my pc fast it load in no time
@slovenc1 (2092)
• Slovenia
26 Oct 10
Restart, keep pressing del to get to bios than you can change primary boot order. Hope it helps
@RamRes (1725)
• Argentina
26 Oct 10
You can define the boot sequence in setup on the cmos. It has nothing to do with Windows, and in fact it comes all before Windows even loads. You may have the USB boot option before IDE/SATA, and that's the reason. The ideal boot order should be: floppy/CDROM, hard disk, USBs. Unless you really want to boot from USB, don't set it at the top of the boot order.