Unallocated Space Error Windows 10

tmbowers2004

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Jan 30, 2018
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When I am creating drives in Windows 10 Drive Management, 746.52 GB of a 3 tb Hard drive is showing unallocated. When I right click on the drive, all options involving volumes are grey (I cannot click on them). I have one other volume, taking up about 2047 gb of the hard drive. Is there anything that I can do, or do I need to RMA the drive? Please keep in mind that there is nothing on the drive. Also, this is a ryzen system.
 
Solution
If the OS isn't on this drive with the unallocated space issue that is set up as MBR then you don't need to reinstall Windows. I would back up the drive, delete all the partitions using Windows Disk Management, convert the drive to GPT, then create your partition(s) and format them for use. This can all be done within Windows if the drive is not your OS drive.

Windows 10 ISO image is best downloaded using the Windows 10 Media Creation tool from Microsoft's web site. It both downloads the latest ISO and also gives you options and where to put it such as USB or DVD.
You can extend or "expand" one of the other partitions into the black unallocated space. That way you can use the unallocated space without having to turn it into another partition. You could turn the unallocated space into a new partition and format it for use and it would show up as a new drive in Windows with a new drive letter.

Here is a guide.
 


I tried this and every thing that was in the article. However, none of it worked. I tied using disk part to extend the volumes, but it gave me this message

"Virtual Disk Service error:
Only the first 2TB are usable on large MBR disks.
Cannot create partitions beyond the 2TB mark, nor convert
the disk to dynamic."

Am I doing something wrong, or is thew drive just being weird?
 
The hard drive is fine. That is a limitation of the MBR partitioning style I believe you chose which was an error. What you want is the GPT partitioning scheme for drives that large. MBR is limited to 2TB. Windows is telling you exactly what the problem is. What you are going to have to do is backup the disk, delete the partitions, convert the disk to GPT, then recreate the partition(s) and format them. If this disk is what you are running your OS on then you'll need to do this from a bootable Windows DVD or USB and also reinstall Windows. Programs like EaseUS may allow you do convert the disk to GPT. I would make sure the data is backed up before trying this however as there is always risk.
 


My OS isn't on the hard drive, but will I have to re download windows regardless. If I end up doing this, how should I?

Thank you so mush for your help.
 
If the OS isn't on this drive with the unallocated space issue that is set up as MBR then you don't need to reinstall Windows. I would back up the drive, delete all the partitions using Windows Disk Management, convert the drive to GPT, then create your partition(s) and format them for use. This can all be done within Windows if the drive is not your OS drive.

Windows 10 ISO image is best downloaded using the Windows 10 Media Creation tool from Microsoft's web site. It both downloads the latest ISO and also gives you options and where to put it such as USB or DVD.
 
Solution