Not sure why all the Windows "experts" have to be such jerks and assume that people are pirating. I bought my computer over 4 years ago from a nationally known retailer. I never had a problem with Windows until the past few months. The first time I got this error message, I called Microsoft - got advice but it wasn't worthwhile. I reloaded Windows 7 successfully, I thought, but have started getting message again. Meanwhile, computer is very temperamental and very slow. When I tried to reload Windows 7 yet again, I received a message that the copy I was trying to download was older than what is currently on the computer. Yes, it is the disc for Windows 7. I assume the reference involves updates, so should I just go ahead and reload it?