folders in Win7 where personal files reside

i need to copy the personal files on a win7 laptop i received and put fresh win7.

would it be safe to assume the personal files are all going to reside inside "Program Files", "Program Files (x86)", "Users"

The other folders I see on C drive are  dell, intel, perflogs,   Windows. (this is a lenovo laptop). Other than C drive, D drive is restore drive and that's all the drives.

thanks.