Windows 10: can't delete partition

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  1. shmu26's Avatar
    Posts : 271
    windows 10 pro x64 stable build
       28 Dec 2016 #1

    can't delete partition


    I am in Computer Management.
    I am the owner of the volume, there is no sharing, the partition is empty, but "access is denied", and I can't delete it.
    I tried reformatting, it did not solve the problem. I also tried stopping the reformat in the middle, so it shows as raw data, but I still cannot delete it.
    This is not the system partition. I used it until now to store VMs.
      My System SpecsSystem Spec

  2. shmu26's Avatar
    Posts : 271
    windows 10 pro x64 stable build
       28 Dec 2016 #2

    UPDATE: I checked the security tab again, and ownership reverted to system. This has happened more than once.
    What's going on here?
      My System SpecsSystem Spec

  3. shmu26's Avatar
    Posts : 271
    windows 10 pro x64 stable build
       28 Dec 2016 #3

    my bad.
    It was because of Rollback Rx. I uninstalled and everything worked perfectly. This simply slipped my mind.
      My System SpecsSystem Spec

  4.    14 Feb 2017 #4

    Good Morning:

    Click image for larger version. 

Name:	Disk MGMT.PNG 
Views:	8 
Size:	29.6 KB 
ID:	121151

    I cannot delete the Partition containing 469 MB labeled "Healthy (Recovery Partition). When I right click on its Box at the far right, i do not get an Option List that allows Delete or Expand. Rather I get a note HELP which directs me to Microsoft Windows 10 webpage.

    Should I use DISKPART? Can I delete this Partition safely, and add it to C:?

    Appreciate advice...
      My System SpecsSystem Spec

  5. shmu26's Avatar
    Posts : 271
    windows 10 pro x64 stable build
       14 Feb 2017 #5

    if you delete or move your recovery partition, you will lose the built-in option to refresh or reset your windows installation. You will have to do that from external media that you prepare in advance.
      My System SpecsSystem Spec

  6. Bree's Avatar
    Posts : 1,735
    10 Home x64 (1607), Pro x86 (1511 & 1607)
       14 Feb 2017 #6

    Toronto Cat said: View Post
    Should I use DISKPART? Can I delete this Partition safely, and add it to C:?
    @Toronto Cat, Disk Management shows the Recovery Partition as 100% free and an unknown file system because it is 'denied access' - for good reason, this is the WinRE recovery partition. It's not empty and it's needed for system recovery. Without it you'd need a Recovery Drive on a USB or an install iso to repair your system. Best leave it alone.

    Yes, you could get access to it using Diskpart to change it's ID to a Primary Partition, but I'd suggest you don't. I have done this on an old Win7 machine just to have a look at what it contained. Curiosity satisfied, I changed its ID back to a Recovery Partition straight away.
      My System SpecsSystem Spec

  7.    14 Feb 2017 #7

    Bree, thank you so much for your quick response:

    My system is an older Vista, professionally refurbished to Win7, that I have later upgraded to Win10. Do i still need the Recovery partition if I have no intention of going back to win7? I also have created a Recovery Drive on a memory stick.

    If you agree that I can delete and expand, can you offer some advice on how to do it?

    Thx again....
      My System SpecsSystem Spec

  8.    14 Feb 2017 #8

    You can both delete the partition and expand the system partition using MiniTool Partition Wizard Free:
    Best Free Partition Manager for Windows | MiniTool Partition Free

    The recovery partition is really for convenience only. You can get all the same functionality by booting from a Windows 10 installation USB flash drive or DVD.
      My System SpecsSystem Spec

  9.    14 Feb 2017 #9

    Thank you Commander...
      My System SpecsSystem Spec

  10. Bree's Avatar
    Posts : 1,735
    10 Home x64 (1607), Pro x86 (1511 & 1607)
       14 Feb 2017 #10

    Toronto Cat said: View Post
    My system is ... Win7, that I have later upgraded to Win10. Do i still need the Recovery partition if I have no intention of going back to win7?
    That recovery partition no longer contains the Win7 recovery environment. It would have been upgrade to Win 10 and is now a Win10 recovery partition. I'd recommend keeping it in case you need to repair the PC.

    At 469MB it would only increase the free space on your C: drive less than half a percent. It hardly seems worth the effort when you could gain more space by keeping some of your photos on a USB stick instead of on C:. You could probably gain more free space by running Disk Clean-up, particularly if you click its 'Clean up system files' button. That will add a 'More options' tab where you can delete all but the most recent restore points - that alone is likely to release more than 469MB.

    Having said all that, if you really must then you can use Diskpart to change the partition's ID. Once the ID is changed you can manage it like any other partition using Disk Management. The recovery partition is ntfs formatted, but has an ID of 0x27 instead of the normal 0x07 used for a ntfs primary partition. Use Diskpart to Set ID=07 and it will become a primary partition.
      My System SpecsSystem Spec


 
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