ok im not sure this is in the right place but i have a problem (as indicated by the fact im here) ok not to long ago i built a pc and shortly after came up with a better motherboard then thee one i had so i took it back and got the new board. got home put in the board and then idk few days later after no use i turn it on to try and play a game and it ran so slow it wasnt funny. so i said ok well ill just erase the hard drive. and i did so using dban boot and nook well then i was unable to reinstall my windows 7 pro 64 bit. come to find out its an upgrade disc. so i got a hold of a friend and he installed windows xp 32 bit. i later the next day realized its only showing i have 3 gigs of ram when i know it should be 8. so i get ahold of that friend again and he installed windows 7 32 bit (home premium i think) and now will read that it has 8 gb of ram but says only 3 usable. and then he had a message come up saying windows code he entered was not valid. and he tried again and still nothing. then he started clicking around had a message come up saying that a code (or something) was missing in the bios and as a result wont let me input the activation code for windows. so i was wondering if anybody might be able to tell me what i can do to fix this (btw im sorry for my bad grammar) and thank u to anybody whom replies