Windows 7: How to Merge Volumes/Partations?

i just add my 2nd HDD today that have 3 volumes that's I: (19.53GB) , J: (195.31GB) and K: (17.94GB) and i tried to delete both I: (19.53GB) and K: (17.94GB) using Disk Management so i can add it to I: (195.31GB) but im getting "Access is Denied" i login as admin and it doesn't make any sense

other infos:

#this is my motherboard ASUS P5KPL-AM SE Motherboard - Intel G31, Socket 775, µATX, Audio, Video, PCI Express, 10/100 LAN, USB 2.0, Serial ATA at TigerDirect.com

#Login as Administrator / no other account is created but only me
#Windows 7 64 Ultimate Version
#i have 2x HDD both are SATA2 Seagate Barracuda my main is 500GB with 3 volumes/partitions C: (27.34GB) , D: (40.92GB) and E: (397.40B) , my 2nd HDD is what it mentioned earlier

the screenshot:





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Before we embark into any advice, could you please post a screenshot of your Disk Management. Just to be sure with what we are dealing.
But if you want to take your chances, use this program. That will do it.

thanks for fast replays i just update my post to rearrange some things and the screenshot i'll go try the software you just advised thanks