closing command prompt in the middle of an operation

I was doing a clean all command on one of my HDD's. I was closing windows and accidentally closed the command prompt window. The drive is in an external dock and the light is still flashing like it's still doing what I asked it to do.

I reopened CMD and typed diskpart but that's as far as I took it. I haven't checked what services are running.

Can you reboot back into Windows 7?
If you can, then just try the cmd again on the selected drive. Of course you can't select the drive/partition "C" that Windows 7 is installed.

If you can completing this tutorial by Golden would be helpful.

Disk Management - Post a Screen Capture Image

I'm curious.
Please complete the tutorial as the tutorial is wrote.

I try to remember that a reboot or shutdown and startup can have a cleansing effect after a small boo boo.

Did you or are you running the Clean All cmd on disk 3?

Did it complete? That big of drive would take a lot of time.

Remember that a drive (Disk 3) might not show up as (Disk #3) in the cmd prompt. One must be sure of what disk the Clean All command is done on.

If I had to do what you are trying to do, I would do it in this fashion.
Cleaning 11 HDD will take a very long time.

1. Remove all drives except the drive Windows 7 is installed and 1 other HDD.

2. Do a Clean All on that 1 drive.

3. When the 1 drive has been cleaned, replace it with another drive and run the Clean All cmd on that drive.

Do this until all the drives you want cleaned has been completed.
This method will allow you to keep track of what has been completed and make sure that any drives you don't want cleaned are not cleaned.