Microsoft security essentials?

-I have windows XP 32 bit. when I try to download microsoft secruity essentials an error code Ox80070645 stops the download when I have no other security suites installed. I prefer to have microsoft antivirus suites on my computer.

I am not very good with computers. Please keep soloutions simple. Thanksi am in mse user, i think you hav tried to install a 64 bit version,better try to correctly download a 32 bit version
Its probibly a newer windows 7 sec suite you should try looking for an older xp 32 bit version