Windows 10: Numerous recovery partitions after a few formats and installations Solved

  1.    02 Jan 2017 #1

    Numerous recovery partitions after a few formats and installations

    Since I got my laptop I messed around with it quite a bit. As a result, I have way too many recovery partitions.

    How do I know which ones are relevant? And which ones can be deleted safely?

    *If that's the only option, I'm OK with just wiping absolutely everything and reinstalling with factory settings.

    Thanks a lot.
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    Last edited by GbeTech; 02 Jan 2017 at 08:40. Reason: Added a screen cap
      My ComputerSystem Spec

  2.    02 Jan 2017 #2

    The standard recovery partition that Windows 10 creates is 450 MB in size which I don't even see on your drive so it looks like all of those must be manufacturer specific. You can more than likely delete all of them and the only thing that will be affected is your ability to do a factory reset back to the original full factory load of software. You can see which partition Windows will use for the troubleshooting menu by opening a command prompt (admin) and running:

    reagentc /info

    Be careful, though because there is a hidden MSR partition in there that does not show up in disk management, so you actually have to use either MiniTool Partition Wizard to see actual partition numbers or the diskpart command in a command prompt (admin) window. See my example below.

    The WindowsRE location is the partition that Windows uses for the troubleshooting menu. The image location is the partition will load a custom image from during a reset and may not be present. My image location is set to a Windows 10 image contained on the second hard drive on my computer - notice it is on harddisk1 and not harddisk0.

    Microsoft DiskPart version 10.0.14393.0
    Copyright (C) 1999-2013 Microsoft Corporation.
    On computer: JOHN-LAPTOP
    DISKPART> select disk 0
    Disk 0 is now the selected disk.
    DISKPART> list part
      Partition ###  Type              Size     Offset
      -------------  ----------------  -------  -------
      Partition 1    Recovery           450 MB  1024 KB
      Partition 2    System             100 MB   451 MB
      Partition 3    Reserved            16 MB   551 MB
      Partition 4    Primary            446 GB   567 MB
    DISKPART> exit
    Leaving DiskPart...
    C:\WINDOWS\system32>reagentc /info
    Windows Recovery Environment (Windows RE) and system reset configuration
        Windows RE status:         Enabled
        Windows RE location:       \\?\GLOBALROOT\device\harddisk0\partition1\Recovery\WindowsRE
        Boot Configuration Data (BCD) identifier: fcaab811-8717-11e6-843d-aa73efa5da58
        Recovery image location:   \\?\GLOBALROOT\device\harddisk1\partition3\Sources
        Recovery image index:      1
        Custom image location:
        Custom image index:        0
    REAGENTC.EXE: Operation Successful.
      My ComputerSystem Spec

  3.    02 Jan 2017 #3

    Hey, thanks a lot.

    Click image for larger version. 

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    I tried to color code to make it clearer.
    What confuses me the most, is:

    - What's the use of the green "System" partition given the big C one is also system? "EFI"?
    - Is it possible to re-create the red Lenovo partition when resetting the PC?
    - The light blue "OEM Partition"?

    Thanks for clarifying.
    Attached Thumbnails Attached Thumbnails Capture.PNG  
      My ComputerSystem Spec

  4.    02 Jan 2017 #4

    SOURCE: Lenovo Yoga Pro 2 Partition Cleanup

    Click image for larger version. 

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    Partition 1 - Recovery (WINRE_DRV) - 1000MB
    • Windows RE bootable (for Recovery Mode)
    • Used when booting into Windows Recovery (Win RE) environment

    Partition 2 - System (SYSTEM_DRV) - 260MB
    • System UEFI bootable (EFI/Windows boot menu)
    • UEFI boots this partition, it contains Windows NTLDR, HAL, Boot.txt, and some drivers (Windows will not boot without this)

    Partition 3 - OEM (LRS_ESP) - 1000MB
    • Lenovo Recovery System (EFI bootable)
    • Lenovo One Key Recovery (OKR) button boots into this partition, which allows to do factory restore

    Partition 4 - Reserved (MSR) - 128MB
    • Reserved Microsoft partition for GPT-based disks
    • Must exist and must be 128MB, used by Windows when moving/changing partitions through Disk Manager

    Partition 5 - Primary (Windows8_OS) - 218GB
    • Main C: drive - contains Windows, installed programs, etc

    Partition 6 - Primary (LENOVO) - 4GB
    • Lenovo D: drive - contains mainly drivers and installers for some bundled apps

    Partition 7 - Recovery (PBR_DRV) - 13GB
    • Lenovo factory reset image
    • Used by One Key Recovery system to reset laptop to factory condition
      My ComputerSystem Spec

  5.    02 Jan 2017 #5

    There you go...looks like the explanation @Avocado provided and the article linked to is about the best info there is!
      My ComputerSystem Spec

  6.    02 Jan 2017 #6

    Thank you, NavyLCDR and Avocado. Extremely helpful. In recovery through a USB stick, I ended up using "clear" while in select disk 0 -> list partition, then renewing the uniform unallocated space. Windows automatically created the necessary partitions.
      My ComputerSystem Spec

  7.    02 Jan 2017 #7

    That's the best way to do a clean install!
      My ComputerSystem Spec


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