Freezing at boot may be a virus, but usually not. Could be a hardware problem, but could also be a software problem. If you plan on reinstalling to clean it anyway and it still doesn't work, that will at least rule out software or virus.
You should be able to get the disks you need directly from IBM/Lenovo. Recovery disks usually cost around $20-$30 although I have seen them as high as $50. Much cheaper than buying a new copy of Windows.
You should be able to get the disks you need directly from IBM/Lenovo. Recovery disks usually cost around $20-$30 although I have seen them as high as $50. Much cheaper than buying a new copy of Windows.