Windows 8 and 8.1 Forums


would deleting Windows 8 recover Windows 7?

  1. #1


    Posts : 4
    Windows 7 Home Premium x86; Windows 8 CP x86

    would deleting Windows 8 recover Windows 7?


    I have problem with my Windows 7 since Windows 8 installed to my PC

    Error: C:\Windows\System32\winload.exe

    Code: 0xc0000428

    Details: Cannot verify the signature of the file.
    I did repair with Command Prompt from Windows 7 Installation Disc but it's no good.
    but, I have strange problem with this command

    bootrec /ScanOS
    bootrec /rebuildbcd

    Scanning all Windows Installations..
    Please wait, this may take a while.

    Total Windows Installations: 0
    This is strange since my Windows installations is 2, it's Windows 7 and Windows 8.

    My question is, If I delete Windows 8 and repair Windows 7 mbr, will that work?
    but if you can save my Windows 8 and repairs Windows 7, I appreciate that.

      My System SpecsSystem Spec

  2. #2


    Posts : 1,851
    8250 x86 + 7 SP1 x86 + Ubuntu 12.04 LTS x86


    Hey, welcome!

    All you have to do is set your bios to boot from the correct HDD. It is probably incorrect at the moment.

    Either that or use gparted live to set the Windows 8 HDD (where all files are like Windows folder, Program Files etc...) as a Primary partition instead of logical.
      My System SpecsSystem Spec

  3. #3


    Posts : 4
    Windows 7 Home Premium x86; Windows 8 CP x86


    doesn't work, and I only have 1 HDD, and my Windows 8 Partition is Primary
      My System SpecsSystem Spec

  4. #4


    Posts : 1,851
    8250 x86 + 7 SP1 x86 + Ubuntu 12.04 LTS x86


    You could try using gparted to find the partition where Windows 8 installed its system partition housing bcd. If it is the Windows 8 partition itself, set that as the active partition and try to boot.

    Basically, the partition where the new Boot folder and bootmgr files are located should be set as active.
      My System SpecsSystem Spec

  5. #5


    Portsmouth Hants
    Posts : 772
    Windows 8.1 Pro with Media Center


    This is one of those crazy "C:\ drive " problems that Windows falls over with. Possibly Windows 8 has found your system drive where Windows 7 resides and has deleted the drive letter, effectively hiding the drive from itself.
    If you can boot from the Windows 7 install disk you should be able to run a command prompt, and if not obvious, shift F10 should open one up.
    Diskpart is the tool that the command console uses to see and manipulate disks, partitions and volumes
    If you issue the diskpart command, after a short while you see a new prompt:

    DISKPART>

    type

    list disk

    and if there's only one disk, it will tell you that Disk 0 is Online, how big etc.

    type

    sel disk 0

    to select that disk

    and it tells you

    Disk 0 is now the selected disk

    type

    list part

    and it will list the partitions on the selected disk 0

    Partition 1 Primary xxx GB
    Partition 2 Primary yyy GB

    there may be three partitions, I hope there's not more!

    Type

    List vol

    This will show you all the volumes - the formatted drives in those partitions (and if there is more than one disk, on those other disks too)

    Volume ### Ltr Label FS Type Size Status Info
    Volume 0 win7 NTFS Partition xxxGB Healthy System
    Volume 1 C win8 NTFS Partition yyyGB Healthy Boot
    Volume 2 D GRMCULFRER_ UDF DVD-ROM 2444MB Healthy

    You get the idea, I hope

    Volume 0 has lost its C drive status, since volume 1 has it

    From the partition and volume lists we can see that Partition 1 is the same as Volume 0, and we need to assign it a drive letter

    type the 4 commands following:

    sel part 1

    assign letter=e

    active

    list vol

    Volume ### Ltr Label FS Type Size Status Info
    Volume 0 E win7 NTFS Partition xxxGB Healthy System
    Volume 1 C win8 NTFS Partition yyyGB Healthy Boot
    Volume 2 D GRMCULFRER_ UDF DVD-ROM 2444MB Healthy

    type

    exit

    to leave diskpart

    At this point you could just try to reboot, and see if the bootloader has found the active system volume.

    But just check that

    dir e: /a

    has a windows folder and a BOOT folder and bootmgr file

    and

    dir c:\ /a

    also has a windows folder
      My System SpecsSystem Spec

would deleting Windows 8 recover Windows 7?
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