no option vista booting

Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance

All I can tell you is I installed Vista on a new primary partition on the same drive as my 32-bit XP, and after installation I got a dual boot menu. Perhaps reinstalling Vista will create the boot menu?
"Gaurav" wrote:

Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance

"Gaurav" wrote in message

Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance

Punch F6 as soon as the computer begins booting up and see if it halts on a boot menu.

I'm by far not an expert, but it seems to me after reading the myriad of similar posts, that when Vista is installed in a dual-boot or multi-boot situation, it assumes the user is too inept to have thought far enough ahead and installs its own boot manager. This is all well and good, except for the fact that this boot manager is by default installed on the first partition, C:\, regardless of into which partition Vista is actually being installed. Thus, when you re-installed XP, in your instance, this boot manager was over-written. So instead of re-installing Vista, try the freeware product that has been bandied about called "VistaBootPro." Andre and a few others that are very knowledgeable have recommended it on this forum. PartitionMagic (about $55.00) also has a boot manager called, creatively, "BootMagic."
Ultimately, to avoid this when installing in this configuration, if you simply hide all drives and partitions except for the partition you have designated for Vista, directly prior to installing Vista, and you have a boot manager installed, it should not be able to install its boot manager anywhere except the partition that is visable.
Perhaps, and I plan to do this myself, we should encourage Microsoft with the feedback that Vista should give users the option of installing the Vista boot-loader when Vista is installed on a partition other than C:\ or if Vista detects another O/S while being installed.
But remember, I'm no expert!
"Gaurav" wrote:

Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance

"Boomer" wrote in message

"Gaurav" wrote in message Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance
Punch F6 as soon as the computer begins booting up and see if it halts on a boot menu. Oops, sorry, make that F8. That what I have to on my computer.

Gaurav wrote:

Earlier I had xp 64 bit and vista 64 bit on two partitions. Then I replaced xp 64 bit with xp x86, and now xp starts automatically without any option to choose operating system. so i am not able to start vista.
please guide what to do..... thanks in advance

Reinstall the Vista boot by booting on the DVD, click on "System recovery tools", select Command Line, go on the DVD letter, then on the "boot" folder, and type "bootsect.exe /nt60 c:" It will restore the dual-boot, overwritten by the XP installation
-- Christophe Roy