can't use free hdd space

Ant0nio

Honorable
Apr 6, 2013
1
0
10,510
hello i have a wd 500gb hdd. i had partitioned it on 3 part 100gb,200gb and 200gb. i recently have made a fresh windows install and formated all 3 parts but when i go to my computer i see only 2 parts 100gb and 200 gb. i can see the free space of other part but cannot use it. what to do??? here are some pics to understand better.
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http://prntscr.com/zi9m4
when i right click on free space i get only simple volume choice but it doesn't do anything and gets me error. at least if someone can help me to merge it with my c:\ part and have only 2 partition.
 
what error are you getting when you try to do something with the free space? also try to run a diagnostic on the hard drive to see if it ok. ie chkdsk or scandisk and http://www.seagate.com/support/downloads/item/seatools-win-master/ , then to merge the two partition into 1 without destorying data you will need a software like 'partition magic'