Unable to capture C drive using Dism and imageX commands

I am trying to capture C drive using dism command but it did not work, but the same command is capturing E drive. i am using following command.

dism /Capture-Image /ImageFile:E:\image.wim /CaptureDir:C:\  /name:"Image File"

I am getting following error.

Deployment Image Servicing and Management tool
Version: 6.3.9431.0


Error: 32

The process cannot access the file because it is being used by another process.

The DISM log file can be found at C:\Windows\Logs\DISM\dism.log

An in the log file the error is:   DISM   DISM.EXE: WimManager processed the command line but failed. HRESULT=80070020