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Windows 7: Help. Dual boot won't boot.

05 May 2009   #31

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

You should get a boot menu offering two Vista installations.

The default will be the new installation.

The boot files you have just installed will be on the Active partition ( presumably the first partition - your existing Vista partition).

The MBR and bootsector will have been rewritten and should work.

Then all you need to do is make the Vista you want to keep the Default boot choice.

To do that, easiest way is to type msconfig in start search box, open it, click Boot tab, highlight the Vista you want to have as default( i.e. the one you wish to keep), Apply and OK.

Help. Dual boot won't boot.-bootchoice2009-05-05_202210.jpg

No need to restart immediately , but do and check in Disk Management that you have booted into into the original Vista and the partition is shown as both System and Boot.

The new Vista installation will then just be a bunch of files - you don't need them - delete it, install 7 over it, whatever you like.

That seems to be the case. everything I try I get the blinking cursor. why would this be?
Last time I got that , the sata lead was detached. In your case, I think there is a problem early in the boot sequence.

Reinstall should fix it. You could do it from the command line, but as a reinstall omly takes 20 mins. - it may be easier for you to reinstall.

My System SpecsSystem Spec
05 May 2009   #32

Windows 7 Home Premium 64 bit

Many thanks I'm going to try that now. Hopefully my next post will have some kind of smiley attached.
Best wishes, John
My System SpecsSystem Spec
05 May 2009   #33

Windows 8, 7, Vista x32 & x64

I just in installed win7 and I have a boot menu. If nothing works and it sounds bad I would start all over again. Format both drives and install vista and get that up and working. Change the bios back to boot from HHD. Reboot into vista a couple of times. Change the bois back to boot to CD and install Win7 and see what happens. I know it sound like a lot of work, but that is what you are doing right now working hard and not getting any where.
My System SpecsSystem Spec

05 May 2009   #34

7600.20510 x86

I was just going through this thread and a thought jumped out at me:

If your bios has a setting for RAID as a possible choice and something else like IDE, did you mistakenly change it from RAID to IDE? I did that once while "playing" even when I wasn't running any raid array at the time and that generated the same error as your o.p.
My System SpecsSystem Spec
06 May 2009   #35

Windows 7 Home Premium 64 bit

Well I'm afraid I couldn't get any of those suggestions to work. I tried the Vista install on my W7 partition but still no boot. Tried all sorts of things. Eventually i got so frustrated I deleted the partition and reformmatted the drive.
I then tried to do a fresh install of Vista but that wouldn't boot either.
In a fit of disconnection anxiety I took it to a local system builder and trader.
Embarrassingly he says he installed and booted and said no problem that he could find. He ran all sorts of diagnostics apparently so he charged me 45 pounds.

I think my problem is that my technical knowledge is very superficial. I know how to the things that I've learnt to do but I don't really understand why they work like that.
I probably missed something really obvious.
My screw ups are getting less frequent so I must be learning something.

Thanks for all your help and support, john
My System SpecsSystem Spec
06 May 2009   #36
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

Hello John.

Well at least you've got your system back up and running and there was nothing wrong with the hardware. Now take your time and methodically get everything back like it was and above all; have fun and learn as you go as I do; remember there's no rush.

Later Ted
My System SpecsSystem Spec
06 May 2009   #37


have you verified via msconfig that your boot sequence is in the proper order.
you also might simply delete the reference to Win 7. leaving your original OS bootable via drive C:
My System SpecsSystem Spec

 Help. Dual boot won't boot.

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