Won't read hdd

[damitbill]

my 2,500$ comp has messed up and it wont read the hdd i havent defraged and i used to have a lot of viruses and so i wiped the comp of all un neccesary programs and it wont connect to internet (im usin friend comp)
and extremely ssssssssslllllllllllllllllooooooowwwwwww



PLESE HELP

 

[damitbill]

oh and on boot up it says "TCP/IP protocal not properly installed".
Part of the problem or no?