I am Jacob, I have worked with computers since 1975, however other than a year obtaining a computer network certificate which did entail some soft and hardware class, I am mostly self taught. I found a Pentium II Dell V-400 at a garage sale that worked, however I bought a drive erase program and crashed the system. When I attempted to load 2000 and then 98 on it, I received a "invalid system disk" error. I am sure the boot disk or cd has the right information. So my question is , is it a bad hard drive or what. Any help would be appreciated, have a great day!