How to create a new drive when there is no unallocated space

[besure]

my pc hard disc is 0f 500 GB.....the problem is that
when i go to disk management option there is no unallocated space...which i can use to create new driveas my c drive is of 451 Gb...how to get unallocated space..??

 

[mitch074]

my pc hard disc is 0f 500 GB.....the problem is that
when i go to disk management option there is no unallocated space...which i can use to create new driveas my c drive is of 451 Gb...how to get unallocated space..??

Look up the difference between Gigabyte and Gibibyte - you'll find where your "missing" 50 GB went. Short answer: a 500GB drive, when formatted, amounts to 461 GiB = 500,000,000,000 bytes. Then you need to remove some spare clusters, the file system's metadata, recovery data etc.

 

[WR2]

You can 'shrink' your current single volume.

Shrinking your 451GB volume to 301GB will give you space for a 150GB partition.

 

[WR2]

EaseUS Partition Master Home Edition
http://www.partition-tool.com/