Hi, You can use shrink command to shrink the partition and then create a new partition with the unallocated disk space. Shrink a Basic Volume http://technet.microsoft.com/en-us/library/cc731894.aspx A Description of the Diskpart Command-Line Utility http://support.microsoft.com/kb/300415/en-us

thanks, I tried that this morning, but now I can't find the unassigned partition/space ;/ list volume/partition doesn't show it nvm - created a new partition which automatically used the unallocated space

I have 2 partitions on the server - 1 for the OS and another larger one for data, I need to split the larger data partition into 2 partitions. How can I do that with server core through command prompt?