Windows 10: Removing 'mystery' partitions after upgrade to Win 10

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  1.    25 Nov 2015 #11

    Hi,

    1. Probably is OEM DELL. What are the files form W10 that are in there?

    2. Probably also OEM, memory diagnostics or something like that.

    3. Is the partition the gets created when a drive is prepped as a GPT drive. Do not touch that one.

    4. The first Recovery partition which is probably from Win8.x ?

    5. Current Recovery partition created by Win10.

    6. Dell's OEM recovery I guess.

    Hope this helps,
      My ComputersSystem Spec

  2.    26 Nov 2015 #12

    fdegrove said: View Post
    Hi,

    1. Probably is OEM DELL. What are the files form W10 that are in there?

    2. Probably also OEM, memory diagnostics or something like that.

    3. Is the partition the gets created when a drive is prepped as a GPT drive. Do not touch that one.

    4. The first Recovery partition which is probably from Win8.x ?

    5. Current Recovery partition created by Win10.

    6. Dell's OEM recovery I guess.

    Hope this helps,
    Thanks fdegrove for your insights.

    You asked what of W10 is in the EFI (very first) partition. Here is a screenshot. These are files called BCD.log...which the Internet tells me are important Boot Configuration Data logs? I was thinking of keeping the first two partitions intact. Can't touch the 128MB so that and the C drive are out of the question. So, is the 450MB partition right after C drive.

    I can then merge the PBR image drive of 7.36 GB and the WINRETOOLS 750MB with my C drive? Let me know if this looks a safe thing to do...

    Thanks
    Click image for larger version. 

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      My ComputerSystem Spec

  3.    26 Nov 2015 #13

    Hi,

    So, partition 1. is your EFI partition which you need to leave as is as well.

    Ideally you'd want the following order:

    1. GPT conversion partition.
    2. Recovery
    3. EFI
    4. System (C:\ drive)
    5. Data or whatever.

    Some of these partitions are quite a bit larger than what one usually sees on most systems probably because they're OEM and are sized like this for some reasons unknown to me.

    So, short of reinstalling from scratch using Windows setup's "Custom" install and deleting the superfluous partitions I'd suggest Macrium Reflect.
    You'd first backup all partitions and then restore in the order you want using Macrium's recovery disk (usb or cd) to shove some of the partitions around but you won't be able to resize them, just copy them in the right order and ignore the ones no longer required.

    If it were me I'd restart from a virgin disk once I'm sure Windows 10 supports all the hardware having made a full backup first as a safety net.

    Cheers,
      My ComputersSystem Spec


  4. Posts : 2,422
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       26 Nov 2015 #14

    You'd first backup all partitions and then restore in the order you want using Macrium's recovery disk (usb or cd) to shove some of the partitions around but you won't be able to resize them, just copy them in the right order and ignore the ones no longer required.
    This is not true. You sure can resize any partition and of course you can not shrink the partition smaller than the size of the data currently in the partition:
    NOTE: The Video only shows how to resize the first partition. Do the same for any other partition.


    Ideally you'd want the following order:

    1. GPT conversion partition.
    2. Recovery
    3. EFI
    4. System (C:\ drive)
    5. Data or whatever.
    On a normal, fresh install of Windows 10. The MSR Partition (16MB) #1 is in between #2 and #4
    as shown below:
    Click image for larger version. 

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    Last edited by topgundcp; 27 Nov 2015 at 04:23.
      My ComputerSystem Spec

  5.    26 Nov 2015 #15

    Hi,

    OK, fair enough. I'm fairly new to Macrium but that's great news.

    Thanks for that.

    Cheers,
      My ComputersSystem Spec

  6.    29 Nov 2015 #16

    Thanks both of you.

    More than resizing, whichever I will take up to edit, I am planning to merge them with C and then create a brand new partition. The earlier contents I would want to get rid of, so probably opt for delete partition and then merge? The rest of the partitions will remain untouched, I won't be resizing them.

    Will wait for a month to make these changes as there might be issues with the install...fingers crossed...
      My ComputerSystem Spec

  7.    29 Nov 2015 #17

    I have a Dell laptop with a similar partition layout - see https://www.tenforums.com/installatio...tallation.html

    My Windows 10 installation keeps failing and I'm wondering if its due to the partition configuration? Thanks for the tip to use Reflect to reorder the partitions. Would this help Windows 10 install if the partitions are in the 'correct' order and would the OEM Dell partitions (e.g. Diagnostics) still work?
      My ComputersSystem Spec


 
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