Windows 8 and 8.1 Forums


Unable to format partition with Unused windows 7 on!

  1. #1


    Posts : 7
    Windows 8

    Unable to format partition with Unused windows 7 on!


    Hey Guys,

    Basically I installed windows 8 on an SSD and partitioned one of my 2tb drives in order to install / transfers programs and documents etc into windows 8 from the old windows 7 install. This worked perfectly, however, windows is not not letting my format the windows 7 side of the partition so i can expand and let windows 8 have the full 2tb of storage!

    Windows 7 is installed on E:, I think perhaps the bootmgr may lay inside of E hence why I can't format it, but I have no idea!

    Click image for larger version

      My System SpecsSystem Spec

  2. #2


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Is it a dual boot setup? What disk is the BIOS set to boot from? One thing you can do is unplug that drive and see if Windows 8 will boot up. If it won't your boot loader must be on that drive.
      My System SpecsSystem Spec

  3. #3


    Posts : 7
    Windows 8


    I think thats the issue, the bootloader is on the WD drive with Windows 7 on. BIOS is set to boot from the SSD though.

    How do i go about moving my boot loader onto the windows 8 partition on that drive or onto the SSD itself (:
      My System SpecsSystem Spec

  4. #4


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    To verify that the boot loader is on the Windows 7 drive unplug it and see if the PC will boot up to Windows 8. If it won't you'll likely have to try doing something like this, Startup Repair - Run 3 Separate Times - Windows 7 Help Forums
      My System SpecsSystem Spec

  5. #5


    Posts : 7
    Windows 8


    Hey Alpha,

    THanks, very similar to what greg told me over on seven forum, a quote from him

    "
    To make Windows 8 on Disk0 independently bootable you should have installed it with all other drives unplugged. To do it now Mark C Partition Active, unplug all other HD's, then run Windows 8 Automatic Repair until it starts and holds the System flag.

    The correct way to delete an OS is to delete its partition in Disk Mgmt. However if it won't delete after marking the System partition Inactive (only partitions booting an OS should be Active) then open an Elevated Command Promptand use DiskPart Command-Line Options to Delete partition Override on the first two partitions on disk2:

    DISKPART
    LIST DISK
    SEL DISK 2 (after confirming it is Windows 7 disk by size in the list)
    LIST PART
    SEL part 1 (after confirming this is System Reserved)
    DELETE PARTITION OVERRIDE
    SEL PART 2
    (again confirming this is old Windows 7 partition)
    DELETE PARTITION OVERRIDE
    EXIT


    Now repartition that space in Disk Mgmt, or use Partition Wizard to resize the other partition into the space to the left.
    "


    Seems very logical and ill give it a shot later on!
      My System SpecsSystem Spec

  6. #6


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Greg knows his stuff. If anybody can help you sort it out he can. I'll pop over and have a look at the thread. I go by alphanumeric there too.
      My System SpecsSystem Spec

Unable to format partition with Unused windows 7 on!
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