Installing Dropbox on Windows 7 Computer

Hello,
I am trying to install Dropbox on my Windows 7 laptop and what I get are errors having to do with the configurations of folders on my computer. The issue is that I have an 8 year old Toshiba laptop and I don't know if if the problem is with my computer, The Windows 7 OS Professional I have on it or the Kapersky Anti Virus – Internet Security software I have installed. Could some help me with this problem?
Thanks!
