Can I delete these two partitions?

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  1. Posts : 9
    Windows 10
       #1

    Can I delete these two partitions?


    I've got a 4.5 year old Lenovo Z51. I bought it as Windows 7 machine and upgraded it to W10 about 4 years ago. I'm now on 10.0.18262. About 6 months ago I changed the 1TB HDD for a 500GB SSD.

    I've been looking at Disk Manager and noticed two partitions that maybe aren't doing anything. My question is: are there any reasons why I can't delete those 2 partitions and merge them in with the main 450GB storage? They don't seem to show up in Windows Explorer & I'm not consciously using them.

    Going from the left hand side in the lower half of the attached screen shot, they are:
    Partition 5: 914MB
    Partition 6: 12.51 GB

    Thanks
    Attached Thumbnails Attached Thumbnails Can I delete these two partitions?-capture.jpg  
      My Computer

  2. Kyhi's Avatar
    Posts : 3,570
    Windows 3.1 to Windows 10
       #2

    open Command Prompt (Admin) and type
    Reagentc /disable

    Then delete the 544MB, the 914MB, 12.51GB - Partitions...
    Then Resize the C partition to fill the unallocated disk space...
    Reboot Your PC..
    Then open Command Prompt (Admin) and type
    Reagentc /enable

    You most likely need to use 3rd Party Software to Delete and Resize the Partitions
    As some may be inaccessible via Disk Management
      My Computer

  3. Berton's Avatar
    Posts : 10,784
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #3

    Ditto what Kyhi said. The issue can be that the OS/Operating System puts files in different places that simply cannot be deleted by that OS, won't kill itself.
      My Computers


  4. Posts : 9
    Windows 10
    Thread Starter
       #4

    Great thanks. Before I go ahead and do it - could there be things in these partitions I'm not aware of? I just want to check I'm safe to go ahead & do it.
      My Computer

  5. Berton's Avatar
    Posts : 10,784
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #5

    The partitions need a letter [in Disk Management] before File Explorer [or the earlier Windows Explorer] can gain access to the data on them, I've always considered them as having nothing useful for the User but there may be times deleting them will break Windows, generally just leave them alone as they are too small for what I need.
      My Computers

  6. Kyhi's Avatar
    Posts : 3,570
    Windows 3.1 to Windows 10
       #6

    Most likely those partition where used by the OEM to allow factory recovery... As one is 12GB
    But you can assign a drive letter to see the contents...
      My Computer


  7. Posts : 9
    Windows 10
    Thread Starter
       #7

    Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
    From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
    Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?
      My Computer

  8. NavyLCDR's Avatar
    Posts : 15,591
    Windows 10 Pro
       #8

    Jedzi said:
    Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
    From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
    Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?
    Nope, that is all there is to it!
      My Computer


  9. Posts : 38,552
    windows 10 professional version 1607 build 14393.969 64 bit
       #9

    There is also a RAW volume G:

    What was previously in G: before it became raw? Anything important?

    Open administrative command prompt and type or copy and paste: (all at one time)

    Code:
    bcdedit /enum all
    reagentc /info
    diskpart
    lis dis
    lis vol
    sel dis 0
    det dis
    lis par
    sel par1
    det par
    sel par 2
    det par
    sel par 3
    det par
    sel par 4
    det par
    sel par 5
    det par
    sel par 6
    det par
    sel par 7 
    det par
    sel par 8
    det par
    When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread
      My Computer

  10. SIW2's Avatar
    Posts : 1,730
    trying to install win10
       #10

    Probably the lenovo recovery image, which can be used to install win7 and activation. You never know, you might want to at some point. I would copy it to an external disk for safekeeping.

    Jedzi said:
    Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
    From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
    Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?
      My Computer


 
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