Can't get to Bios, sends me to OS selection (i dual booted)

Are you sure you can't access your BIOS, or the OS selection screen?

In most PCs, the BIOS is accessible by DEL or F2, try to run those steps.
If the OS selection option is gone, you have to use another PC to Google the recovery process, and to execute it I am pretty sure you'll be needing your Opensus liveCD.

Since you have severa HD's just set the preferred one to boot first in BIOS setup, then if you want to boot the other tap the one-time Boot Menu key which is F12 on Dell.

This is the cleanest method of booting seperate OS's because the HD's remain independent and are free to come and go as you please. A Windows-managed Dual Boot menu interlocks them and makes them harder to remove.

ok you just change "Boot Priority" option and select it as "Boot from DVD Driver" and save it. Now you can load xp or any other OS

If you wan to fresh install, here you can do ::
Try following steps.
Restart the PC, Press Delete for some time
It will lead you to BIOS setting
Go to the Boot Priority menu,
select DVD ROM as First Boot and HDD as Second Boot

Now Insert your Operating system CD: Vista Ultimate
Restart the PC and when screen says " Press any key to continue"
hit "enter"
Let the CD load and then select New Installation
Format the drive by pressing L, and then create three partition , 100 GB for Vista Ultimate, 100 GB for Windows 7 and rest for data.
Hit enter and let os Load

After complete OS loading, system will restart and again you will see " Press any key to continue"
DO NOT PRESS ANY KEY.

OS will boot and register it with microsft. create login and then remove OS DVD,


Insert the Windows 7 DVD
restrt the system, Hit enter when it says " enter any key to continue"
select new installation, point to the earlier created partition for windows 7 installation
proceed with same procedure.
after complete installation, when you restart the pc, you will find both the BOOT entries at booting.
do not forget to load device drivers on both the OS.




Enjoy!

In some cases this one solves the problem:

First, try to use PS2 keyboard type, maybe you are using a Usb keyboard that's why it wont work outside Windows mode.

Then if you are inside the Setup Menu sometimes called the "Bios Setup" try to look under the usb functions if it disable change it to enable, in this way all your usb device will work even if you are not in Windows Mode.

Try Install KDE on your desktop, I think its much better than gnome for booting setup. There's another way which one you'd like to booth by striking the F8 key repeatedly on the restart or starting your PC and select the drive which drive you like to boot.Or you can configure it on your bios setup by hitting the del key and configure your boot priority.

Make sure you have the usb keyboard option enabled in your bios

Good luck

go to add and remove software, deleted the last update from Microsoft. it should put you back to dual boot. try to install the update manually one at a time. find the one that prevent you from dual boot and discard the update. you should be OK w/o ceratin updates.

When you reboot, go to BIOS, restore factory BIOS settings. If that doesn't help, you'll need to reinstall your OS.

Nope, just goto bios menu and look for line First Boot Device then select CDROM, or scroll to have CDROm in the selected first boot device.