Windows 10: Partition Managers fail after trying to re-size windows partition

Discus and support Partition Managers fail after trying to re-size windows partition in Windows 10 Backup and Restore to solve the problem; Hi folks with latest versions of Windows - if you try and re-size the windows partition from Within windows the system fails -- you used to be able to... Discussion in 'Windows 10 Backup and Restore' started by jimbo45, Apr 30, 2019.

  1. jimbo45 Win User

    Partition Managers fail after trying to re-size windows partition


    Hi folks
    with latest versions of Windows - if you try and re-size the windows partition from Within windows the system fails -- you used to be able to start the resize then windows would boot into the relevant partition manager in command mode and finish.

    Now the re-boot just flashes up a message and exits.

    If you need to re-size windows "C" partition now it seems you'll have to make a bootable version of a partition manager and do the whole thing from that program -- probably wiser to do it that way in any case.

    AOMEI, Partition Magic etc all fail when you do it within windows. I simply use GPARTED these days from a bootable USB.

    Cheers
    jimbo

    :)
     
    jimbo45, Apr 30, 2019
    #1
  2. fredde Win User

    Partition Sizes?

    My new system has 2 150 g Raptors in Raid0. I normally keep the O/S on one partition, installed applications on another, and my paging file on another partition. With a volume size of 300 gigs, what would you suggest as far as partition sizes are concerned?

    Thank-You. *Smile Partition Managers fail after trying to re-size windows partition :)*Smile Partition Managers fail after trying to re-size windows partition :)
     
    fredde, Apr 30, 2019
    #2
  3. W1zzard Win User
    W7 Hard drive partition issue

    to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

    - press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
    - diskpart <-- start the windows command line partition management tool
    - list disk <--- list the installed hdds in this computer for the next step
    - select disk 0 <- might have to replace 0 with the number of the correct disk
    - clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
    - create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
    - exit, exit to exit diskpart and the command prompt
    - click refresh in partition manager and select your newly created partition and install to that
     
    W1zzard, Apr 30, 2019
    #3
  4. Partition Managers fail after trying to re-size windows partition

    Installing Windows Vista/7 on a GUID Partition Table

    I've never tried multiple partitions so this is a shot in the dark...

    At step #10, I would try setting the size parameter (it is in mebibytes) to how large you want the partition windows is installed on to be, then go ahead and install windows. This will leave the rest of the drive raw instead of consuming it into the OS partition (C drive). Once you successfully boot into Windows, you should be able to use Computer Management -> Disk Management to create partitions in the raw space.


    If you really wanted to do it with diskpart before Windows is installed, you basically repeat the following lines making sure to specify a size if you don't want it to consume all remaining space:
    • create partition primary size=size in mebibytes here
    • format quick fs=ntfs label="appropriate name here"
    • assign letter=C thru Z here
    Obviously, you can use quick formatting or leave it out for full format. Leave off the size parameter when you reach the final partition that should consume all the remaining space. Also remember that the order you do this in goes from the outside of the disk (where it is fastest) to the inside of the disk (where it is slowest). Because of this, it is recommended to put EFI (e.g. size=300), then MSR (e.g. size=300), then Windows (e.g. size=30000), then Applications (e.g. size=70000), then Storage (e.g. no size parameter).

    If I'm right, the above example would look like this:
    • diskpart
    • list disk
    • select disk <id>
    • online disk
    • attributes disk clear readonly
    • clean
    • convert gpt
    • create partition efi size=300
    • create partition msr size=300
    • create partition primary size=30000
    • format fs=ntfs label="Windows"
    • assign letter=C
    • create partition primary size=70000
    • format fs=ntfs label="Applications"
    • assign letter=D
    • create partition primary
    • format fs=ntfs label="Storage"
    • assign letter=E
    • exit
     
    FordGT90Concept, Apr 30, 2019
    #4
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Partition Managers fail after trying to re-size windows partition

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