I cant create an unallocated space in my hard drive

Antrel59

Reputable
May 23, 2015
7
0
4,510
I have a 150GB HDD hard drive and i want to make a partition to install a second OS but i cant create an unallocated space.Please help.
 

Antrel59

Reputable
May 23, 2015
7
0
4,510


i dont have unallocated space and when i try to create one it says
Total size befor shrink in MB: 152625
Size of available shrink space in MB: 0