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win7 setup format leaves unformatted HD unbootable

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  • User profile image
    ktimekiller

    My computer has two drives, both 1 TB. 

    One has Win7 already, and was listed by the Win7 disk as primary. 

    The other drive, which has an older Win on it, I wanted to be wiped. It was listed by the win7 disk as system. 

    Because I could find no other convenient alternative to formatting (using disk manager didnt work, i would get an error JUST saying it could not be done), I booted off a usb drive containing win7 iso. From using the win7 setup, I selected the hard drive that I wanted to format, and went advanced driver options and selected format. 

    Afterwards, the hard drive that I wanted clean was listed as having full spaces available, while my main drive was unchanged in spaces available. 

    I quit out of win7 setup, and restarted, but the system would not boot from my main drive. Even removing my supposed wiped drive would not allow me to boot from my main drive. It was not a boot priority issue, it simply would not boot. 


    To check the status of my main drive, I installed win7 onto the new drive which I formatted. 

    Booting up, I can see that my main drive that is unbootable still retains ALL of its files functional. However, it just cannot boot from it. 

    I have been told that in my case, the dual boot setup meant that my old windows hard drive held critical information for booting and operating my win7 hard drive. If this is the case, what can I do?

     
  • User profile image
    spivonious

    It's possible that Windows 7 had put the boot manager on the drive with the older OS. I do have to ask why you booted into Windows 7 setup to format the other hard disk. You should have been able to simply right-click the drive and choose Format.

  • User profile image
    AndyC

    In Disk Management the drive labelled 'System' has the boot components on (NTLDR etc) and the drive labelled 'Boot' has the core system files on it (yes, I think this is a stupid naming convention too).

    By the sounds of it you've formatted the 'System' drive and thus deleted NTLDR and so on. You'll need to run a repair installation to get the OS back into a usable state.

  • User profile image
    Sven Groot

    @AndyC: Minor correction: Windows 7 does not use NTLDR. The rest is correct though. Smiley

  • User profile image
    David7738

    boot from the win7 dvd go into repair options and select startup repair your older win7 installation will be added to the boot menu

     

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