Windows 10: Free space on a hard drive has got corrupted, HELP

  1.    31 Mar 2018 #1

    Free space on a hard drive has got corrupted, HELP

    I have 2 8Tb drives that I manually keep in sync. Recently, I have no idea when, the free space on them just got out of step. I've JUST re-synced them but at this moment there is

    1,416,419,140k (& 70,438 files) free on one and 1,938,941,052k (and 70,435 files) on the other. The difference of 3 files does NOT account for the almost half a terabyte difference.

    I summed all the files and they are 5,808,282,200k on one and 5,778,681,337k on the other. The difference is because I have imaged my system (at different times) to each drive.

    The one on the left (R: 1.4Tb free) is the one that appears wrong.

    Two questions....

    1) Why/How did R: get corrupted?
    2) how do I fix the available "free space" on R: the incorrect drive.

    Sorry, a thumbnail with the same drive somehow got attached to this question and I can't delete it.... Sorry
    Attached Thumbnails Attached Thumbnails image.png  
      My ComputerSystem Spec

  2.    31 Mar 2018 #2

    Press the Win Key+X and choose Disk Management. In the Disk Management window, in the lower pane, does the R: drive have a separate partition without a drive letter or Unallocated Space?
      My ComputerSystem Spec

  3.    31 Mar 2018 #3

    Are the clusters the same size on both disk as that could make a big difference
      My ComputerSystem Spec

  4.    31 Mar 2018 #4

    Both discs were bought at the same time and setup exactly the same. They ran forever identically but just differed recently. I'll try to paste a cropped Disk Management snapshot below?

    Click image for larger version. 

Name:	image.png 
Views:	16 
Size:	7.1 KB 
ID:	183067

    I generally copy things to S: and once every couple of weeks sync R: to S:

    I had considered RAID mirroring the 2 discs but, because my PCIe SATA card was new I didn't have confidence with it's RAID routines.

    The discs have worked perfectly for about 19 months. I AM computer literate though not an expert. Have been programming for over 40 years :)

    As you see there is about 6Tb information so I can't just format the disc and re-copy everything back to it. This is a solution I maybe forced to adopt!?

    Thanks for your replies :)
      My ComputerSystem Spec


Related Threads
Hello everyone, I did a search of the forums and didn't get the answer I was looking for. I have two external hard drives. Not sure how this happened, but When I try to access both external hard drives on drive letters E: and F: it gives me an...
Is there any application that comes with Windows 10, that will show the hard-drive storage usage and free space? I do not mean an application that will show usage and free space for each partition (disk). Such data is rather inconvenient, when...
Actually it's an SSD. How can I be positively sure that I'm doing a fresh install of Win 10 into free space on my SSD, and not wipe out an existing Win 10 install. I want to have two copies of Win 10 on my system. I have an unused Win 8.1...
I've recently upgraded to windows 10 home version from windows 8.1 . My hard disk space before the upgrade was around 50GB. After the upgrade it was reduced to around 32 GB. I figured it was just because windows was storing some of the older files...
I have a lot of hard drives on quite a few pc's. I have always read that you should keep a minimum of 15% of free space on any hard drive, which I do on all of my hard drives (7 I think). I recently bought a LIVA MINI-PC and instead of a hard...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 08:42.
Find Us