Windows 10: Windows Virtual Disk Drive keeps detaching from main partition randomly

So I am downloading a large file 94GB on a Virtual Hard Disk since my PC doesn't have much physical space anymore and everytime I download the file, The Virtual Hard Drive as well as my other VHDs just detach and whenever I attach them again, I have to restart the download all the way from the beginning. does anyone have a solution the this problem?

:)

 

Can't remove Hyper-V Virtual Hard Drive partition

Hi Robert,

Thank you for writing to Microsoft Community Forums.

I understand that you are facing an issue when you are trying to remove the Hyper-V Virtual Hard Drive partition. This partition is just a virtual partition that is created by using the space within your physical hard disk, so that
it can be used within Hyper-V. Since you are no longer using Hyper-V and you wish to remove the Virtual Hard Drive partition, I would suggest you to follow the steps below and check if it is helpful to you.

Steps to remove the Virtual Hard Drive partition using Disk Management:

1. Press the Windows key and
   R key, this will open the Run dialogue box for you.
   
2. Type diskmgmt.msc and press
   Enter, this will open the Disk Management Window for you.
   
3. Your Virtual Hard Drive will be indicated by a ‘blue’ drive beside the
   Disk n (n is the disk number to which the VHD is associated), select the allocated
   Volume, right-click and select Delete Volume. You can check the picture below for your reference.
   
   
   
   
4. You will receive a prompt, click on
   Yes. This will delete the volume allocated to the Virtual Hard Drive and the space allocated will now be turned into an
   Unallocated space.
   
5. To detach the Virtual Hard Drive completely,
   right-click on the Disk and select Detach VHD.
   
6. You will receive a prompt, you may click on the check box to
   Delete the virtual hard disk after removing the disk. Click on
   OK.
   

This will remove the Hyper-V Virtual Hard Drive partition from your system.

If the issue still persists, I would suggest you to post your query in IT Pro

TechNet forums, where we have support professionals who are well equipped with the knowledge on the issues with Hyper-V and Virtual Hard Drive to assist you with your query.

Regards,

Aaron Summith

Microsoft Community - Moderator

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

Move Win7 64 image from a partition NTFS to a new drive

EDIT: After reading your first post again, is there any reason that you would now need GPT? Are you just trying to move the windows install to a new disk or is there a new motherboard involved?

If you are already booting to an NTFS partition, then it makes me wonder if after copying to the new drive, the partition isn't getting marked as Active.

Following the same steps I posted above for startup repair, you can get to a command prompt and use diskpart to see if this is the case.

Code: In the command prompt: diskpart list disk select disk 0 (disk number may be different if you have other disks connected.) list partition select partition 0 (partition number number may vary, but you want to see the boot partition which is the same as your windows partition according to the screenshot on the OP) detail partition (This should have Active: Yes or No. If it says no, since we have the partition selected, you can just use the following command in diskpart) active[/quote]