Reformatting Hard Drive

hi how are you I have a sony AR series 770 1080p laptop with dual 160g raid setup hard drives when I put the windows disc in (wich i tried without going into bios and changing the boot order) it goes the the first couple windows screens for the new windows install till it hits the select partition upgrade and where it shows the NTSC partition for the 320 total gigs it say "cannot create partition" or some other errors, I have tried taking the laptops hard drives out and plugging them into my desktop but only the secondary shows up in the other computer as well the laptop will not boot further then shortly past the bios then it goes blank and the "|" curser flashes in the left corner till you manually turn it off so..... my second question would be how do you format a primary hard drive from the laptop (or another computer for that fact) in my main computer when it won't show up ..... p.s. really need the first question answered because my desktop has quit working as well blah I turned it on a week ago and it came on for a second then turned off now it won't turn on unless I unplug it flip the power switch and and them reply it back it flip the switch then hit the power button it worked like this for 4 or 5 days then quit now after the sequence sight the power cord switch and button itll turn on for about 25 seconds reach the bios screen and turn itself off .... I ordered a POST card tester but it doesn't arrive for quite a while and I have a mortgage calculator due at any moment for my first programming class and no computer lol but any and all help would be greatly appreciated thankyou (and sorry was referenceing to the reformatting question on the initial post and decided to throw in the extra stuff, thanks again 8D )