Windows 8 and 8.1 Forums


Partitioning UEFI enabled system for clean install

  1. #1


    Posts : 76
    Windows 8 64-bit OEM Install Upgraded to 8.1 through Store

    Partitioning UEFI enabled system for clean install


    Hello!


    I've been reading for a while, but decided to become a member only day before yesterday to post being unable to find solution. I do apologize in advance if this is a dumb question or answered earlier



    I would like to nuke system for clean install. I understand there will be system reserved partitions, however, my main concern relates to OS and DATA partitions - Please review attached screenshots and advise

    Click image for larger version

    Click image for larger version

    Click image for larger version

    Click image for larger version



    1. 150 GB for C (OS) drive?
    2. 30 GB for RECOVERY?
    3. Remaining for DATA?



    I am unsure where did I read RECOVERY should be the last partition - how would this be accomplished?



    Thanks in advance for prompt response


      My System SpecsSystem Spec

  2. #2


    Posts : 1,121
    Windows 8.1 x64


    I would have to ask you to be more precise about exactly what you want to do.

    For instance, if you are going to wipe the drive and start over by installing Windows 8.1 by yourself, you really do not need a Recovery Image partition (last one) because you will not have a factory image to place in it.

    You have to be careful when pre-partitioning. It can be done, but if not done correctly, you will get error messages about not being able to create certain partitions.

    A Recovery Image partition is normally just a little larger than the image placed in it. It is created by creating a partition, like the OS partition, and then shrinking it to allow unallocated space for that partition.

    The other partitions, Recovery Tools, System, MSR, and OS are created automatically by the install, and these are the critical ones you have to be able to create if you do it manually.

    The actual sizes of your OS or Data partitions will depend on how you use your system. A 150 GB OS partition would work fine for me, but you may want to install programs which take more space.
      My System SpecsSystem Spec

  3. #3


    Posts : 879
    Windows 10


    Here is info about Legacy BIOS Boot Mode (installing using the MBR partition style) and UEFI Boot Mode (installing using the GPT partition style): LINK



      My System SpecsSystem Spec

  4. #4


    Posts : 76
    Windows 8 64-bit OEM Install Upgraded to 8.1 through Store


    Thanks Saltgrass: I will try my level best to answer as precisely as possible

    Quote Originally Posted by Saltgrass View Post
    I would have to ask you to be more precise about exactly what you want to do.
    Partition 750GB, 7200rpm disk for Windows 8.1 clean install

    For instance, if you are going to wipe the drive and start over by installing Windows 8.1 by yourself,
    Thar's correct

    you really do not need a Recovery Image partition (last one) because you will not have a factory image to place in it.
    I understand, however, is it possible to manually create one using which system could be reset?

    You have to be careful when pre-partitioning. It can be done, but if not done correctly, you will get error messages about not being able to create certain partitions.
    What's your suggestion to avoid pitfall?

    A Recovery Image partition is normally just a little larger than the image placed in it. It is created by creating a partition, like the OS partition, and then shrinking it to allow unallocated space for that partition.
    Could you please help detailing how to do?

    The other partitions, Recovery Tools, System, MSR, and OS are created automatically by the install, and these are the critical ones you have to be able to create if you do it manually.

    The actual sizes of your OS or Data partitions will depend on how you use your system. A 150 GB OS partition would work fine for me, but you may want to install programs which take more space.
    I also believe 150 GB would be more than sufficient as my older laptop with Windows 7 Professional 64-bit has only consumed 70 GB out of 115 GB that's in use since 2011

    If you look at one of the screenshots it's not allowing me to reduce OS partition beyond 333 GB - and yes I messed system earlier trying to to do this ending restoring from recovery

    Cheers
      My System SpecsSystem Spec

  5. #5


    Posts : 76
    Windows 8 64-bit OEM Install Upgraded to 8.1 through Store


    Thank you genet: Little bit more information - This system came pre installed with Windows 8 64-bit I've .iso for both 8 and 8.1 what would you recommend for clean install

    UEFI Boot Mode (installing using the GPT partition style): is the one I will give a shot, however, OS partition size remains questionable?

    Regards
      My System SpecsSystem Spec

  6. #6


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Could you please help detailing how to do?

    The other partitions, Recovery Tools, System, MSR, and OS are created automatically by the install, and these are the critical ones you have to be able to create if you do it manually.
    The HP ENVY dv6 Recovery USB/DVD will self partition.
      My System SpecsSystem Spec

  7. #7


    Posts : 76
    Windows 8 64-bit OEM Install Upgraded to 8.1 through Store


    [QUOTE=theog;430450]
    Could you please help detailing how to do?

    The other partitions, Recovery Tools, System, MSR, and OS are created automatically by the install, and these are the critical ones you have to be able to create if you do it manually.
    The HP ENVY dv6 Recovery USB/DVD will self partition.
    Hi theog: Would it be a clean install?

    Thanks

    Edit: Both downloads are legit. Windows 8 is from a link (HP Forum) I am unsure if I could post the link (don't want to violate) while 8.1 is from this very forum (.esd file)
    Last edited by gaming; 21 Sep 2014 at 12:09. Reason: To add more information
      My System SpecsSystem Spec

  8. #8


    Posts : 879
    Windows 10


    Quote Originally Posted by gaming View Post
    This system came pre installed with Windows 8 64-bit I've .iso for both 8 and 8.1 what would you recommend for clean install
    Have you tried this? -> Refresh or Reset your PC from the manufacturer recovery partition.

    Here is more info -> link (see also the pictures, how to use Windows Disk Management to shrink the C: partition)
      My System SpecsSystem Spec

  9. #9


    Posts : 76
    Windows 8 64-bit OEM Install Upgraded to 8.1 through Store


    [QUOTE=genet;430494]
    Quote Originally Posted by gaming View Post
    This system came pre installed with Windows 8 64-bit I've .iso for both 8 and 8.1 what would you recommend for clean install
    Have you tried this? -> Refresh or Reset your PC from the manufacturer recovery partition.
    I already did this when messed up while partitioning

    Here is more info -> link (see also the pictures, how to use Windows Disk Management to shrink the C: partition)
    I would give it a shot, however, if you look at last screenshot in original post the OS partition couldn't be reduced below 333 GB where as you and I are in agreement 150 GB will work

    Thanks
      My System SpecsSystem Spec

  10. #10


    Posts : 2,627
    win8.1.1 enterprise


    I don't have uefi ,but when I did a fresh install i boot to win8.1 dvd deleate all partition and format the entire drive as on ,then i create a 2nd small partition to install windows on , and iam almost positive i could make it smaller than 333g
      My System SpecsSystem Spec

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Partitioning UEFI enabled system for clean install
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