Windows 10: Help Determine what partitions are needed

Discus and support Help Determine what partitions are needed in Windows 10 Drivers and Hardware to solve the problem; I have a Win 10 installation that originally was Win 8, then upgraded to Win 8.1 Pro and finally upgraded to Win 10. It is now on the current 20H2... Discussion in 'Windows 10 Drivers and Hardware' started by fireberd, May 16, 2021.

  1. fireberd Win User

    Help Determine what partitions are needed


    I have a Win 10 installation that originally was Win 8, then upgraded to Win 8.1 Pro and finally upgraded to Win 10. It is now on the current 20H2 version. I know not all partitions are needed. I have a clean Win 10 Pro install (dual boot with this one) and its only one partition for everything. I'll make a full disc image (all partitions) before I do anything to the drive. Here are two screenshots. One from Windows disk management and the other from Macrium Reflect, Both were made about 10 minutes prior to this post.

    :)
     
    fireberd, May 16, 2021
    #1
  2. 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, May 16, 2021
    #2
  3. topgundcp Win User
    Help With Partition Management


    If you really want your Windows to look like as if you do a fresh install and without losing what you currently have in C: Drive. Here's my suggestion:
    1. Make a complete backup image of your current HD including all partitions to an external HD using Macrium Reflect Free . Once done, disconnect all USB devices from the PC. Assuming now you only have one HD connected to the PC which you will be installing Windows.
      IMPORTANT: Also create a Macrium Rescue disk to boot from later on.
    2. Boot up your Windows installation USB/DVD. On the first screen, Hold SHIFT + F10 to open Command Windows then type:
      Diskpart
      select disk 0
      clean
      exit
    3. Click Next, Choose Custom, select the unallocated partition then click Next (Do not format), when asked for Product ID key, click on "Skip this step"/"Do it later". Continue the Installation.
    4. Once done. With the external HD connected, Reboot your PC with the Macrium Rescue disk, select the image that you created in step 1 as the Source.
    5. Select your current HD/SSD as Destination disk
    6. Restore only C: Drive to it. ie. overwrite the new C: Drive with your backup C: Drive.
      NOTE: See screen shot on how to perform this step
    7. Disconnect all the external devices. Reboot. Windows should perform a startup repair.

    Once finish, you should end up with the partition scheme as follows:
    1. Recovery partition - 450MB
    2. EFI System partition - 100MB
    3. MSR Reserved partition - 16MB (Hidden from Disk Management but seen by Macrium or diskpart)
    4. Your old Windows C: Drive with all the installed software.

    Screen shot: Click once on #1 (C: Drive), click "Delete Existing Partition" on #2, Click & Drag #3 and drop to #1. Click Next->Finish

    Help Determine what partitions are needed [​IMG]
     
    topgundcp, May 16, 2021
    #3
  4. Help Determine what partitions are needed

    Help! Data partition not showing under my computer

    This is happening on a windows 2000 server. Our second partition of the system, for data is not showing under my computer. Here are the properties of it in disk management:


    Help Determine what partitions are needed partition.jpg


    Now under logical drives its listed as F and shows free space available.

    Suggestions on how to fix this?
     
    Hybrid_theory, May 16, 2021
    #4
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Help Determine what partitions are needed

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