Blue screen dell desktop?

ahhhhhhhhhhh been dealing with these blue screens and it isnt fun 2 of my cpus are down because of it i want to get 1 working at least and for cheap/free ----- ok ok the problem is i get a stop error c0000221[bad image checksum] image SHDOCVW.dll i wanna get this done soon. i have a couple of blank cds in case i need to download something and a flash drive or sumthing for storage but i cnt find any of my floppy disks OH and no starter cds srry : (