Help! Accidentally deleted my bootcamp while trying to increase space?

Discussion in 'Windows, Linux & Others on the Mac' started by sunny42251, Feb 14, 2018.

  1. sunny42251, Feb 14, 2018
    Last edited: Feb 14, 2018

    sunny42251 macrumors newbie

    Joined:
    Feb 14, 2018
    #1
    Hi, thanks for taking the time to read. My windows was running out of space so I decided to boot up my Macintosh and use Disk utility to increase my space using partitioning. I think I've done this before successfully therefore I didn't look up any guides on how to redo the same process. Big mistake. I click on the partition button on my disk utility, then there's this pie diagram displaying how the spaces are allocated, I then reduce the Macintosh partition by a few GBs, creating a space. Then by clicking the Bootcamp partition, and then clicking the minus "-" sign, I was able to increase the disk space. However, I found out that immediately afterwards that there is no longer a bootcamp option in my startup disk, and the new Bootcamp partition has no used space on it... Is there anyway to revert the changes?
     
  2. Mike Boreham macrumors 68000

    Joined:
    Aug 10, 2006
    Location:
    UK
    #2
    It has never been possible to resize the Bootcamp partition simply in Disk Utility as you describe. There are various ways and apps that will do it but I am pretty sure they all involve making an image of your Bootcamp, then deleting and recreating the Bootcamp partition, then restoring the image. I have done this successfully using Winclone, which is also a great tool for backing up your Bootcamp.

    As for recovering your Bootcamp, there might be a way but it is outside my skills. A critical question is whether the Bootcamp space has been returned to the Mac side. If not then in theory your Bootcamp is still there but not accessible. If it has been returned to the Mac side I think you are out of luck.
     
  3. sunny42251 thread starter macrumors newbie

    Joined:
    Feb 14, 2018
    #3
    Thanks for the answer, I do think i made a big mistake. Fortunately nothing hugely important is lost, however I still do not have access to my windows, This is what my disk utility partition looks like right now: Screen Shot 2018-02-14 at 23.19.42.png

    and when trying to use the bootcamp assistant to reinstall windows, I come across this message: Screen Shot 2018-02-14 at 23.21.21.png

    Is there anyway to get windows back? Thanks again.
     
  4. Mike Boreham macrumors 68000

    Joined:
    Aug 10, 2006
    Location:
    UK
    #4
    Looks like it might still be there, but outside my knowledge to recover it, sorry.
     
  5. Mike Boreham macrumors 68000

    Joined:
    Aug 10, 2006
    Location:
    UK
    #5
    Looks like the Bootcamp partition is formatted HFS+, but it should be NTFS. It looks like you erased it when you did the re-size which makes it very unlikely it could be recovered IMO.
     

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4 February 14, 2018