My computer is running on Windows 7 64-bit. I used Disk Management to create a new VHD file and made it into a new virtual drive. The size of the disk is 8GB. After using about 3GB, I decided to format it. However after formatting the size of the disk is still 3GB.
I tried diskpart to compact this VHD file and I got this error message
Virtual Disk Service error: The requested operation requires that the virtual disk be attached read only.
So, is there any way to compact this VHD file?