Windows 10: Missing harddrive space after trying to make a new partition Solved

  1.    04 Feb 2018 #1

    Missing harddrive space after trying to make a new partition


    Hello I was attempting to make a new hard drive partition and when it was finished I was unable to access it and now it just says there is an additional 256gb taken up on my C: and I cant get to is. Does anyone know a way to recover that lost space?
    Attached Thumbnails Attached Thumbnails image.png  
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  2.    04 Feb 2018 #2

    Hi, where - on which disk- were you trying to create the new partition?

    How were you creating it? What was there before? Were you shrinking a partition to make space for the new one, or creating it from unallocated space? What exactly did you do? How big was C: before you started?

    I notice two things:
    a. C: is shown as 249Gb and then 465Gb - those figures should be the same.
    I assume that has something to do with the new partition to which you refer.
    b. You have 2 EFI partitions- there's a second on Disk 1. You should only have two.
    Was Windows at some point installed on the disk shown as Disk 1?
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  3.    04 Feb 2018 #3

    I would start by running chkdsk on C: drive. Open a Powershell (Admin) or Command Prompt (Admin) and run:

    chkdsk C: /f

    Answer yes to the prompt about running it at restart, then exit and restart the computer. See if that fixes your size issue on the C: drive partition.
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  4.    04 Feb 2018 #4

    Chkdsk did not work
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  5.    04 Feb 2018 #5

    I was trying to make the partition on disk 0. I right clicked on the C: partition and selected shrink then I put in the 216Gb and It just reoved that space from my c drive and no new partition showed up. Everything that was on the screen shot is what what there before, nothing new showed up. C: was 465Gb before I started.

    the EFI partition on disk 1 is for centos
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  6.    04 Feb 2018 #6

    Hi suggest you have a look at your partitions with Minitool partition wizard for comparison.

    You could try Align (rt click C:, Align). It will tell you if any alignment is needed.

    If not, then try shrinking or extending C: a tiny bit, click Apply- a restart will probably be required.
    Then check if the size of C: is reported consistently.

    Could you clarify your comment on chkdsk- was the outcome successful as far as the file system check was concerned?


    Personally I wouldn't attempt to touch C: with Disk Management, but maybe that's just me.
    Last edited by dalchina; 04 Feb 2018 at 14:42.
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  7.    04 Feb 2018 #7

    dalchina said: View Post
    Personally I wouldn't attempt to touch C: with Disk Management, but maybe that's just me.
    I completely agree with that statement, except I would add that I would not attempt to adjust ANY partition with disk management. I use MiniTool Partition Wizard to adjust all partitions. And @dalchina's suggestions of aligning with MiniTool Partition Wizard and/or adjust the size of c: drive just a little bit with MiniTool were what I was going to suggest as well.
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  •    04 Feb 2018 #8

    Chkdisk worked as for as it went through and did everything it was supposed to, However it did not fix my error.
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  •    04 Feb 2018 #9

    The minitool partition wizard was able to find the partition. That solved my problem, Thank you.
      My ComputerSystem Spec

  •    05 Feb 2018 #10

    Good news. It's a reliable tool.
      My ComputerSystem Spec


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