NET Framwork 4 installed, however, WDSmart cannot be installed with NET smaler than 3.0

[richUK]

Does this mean that you have got past the other error you posted.

http://community.wd.com/t5/WD-Software/Error-installing-WD-Smartware-or-SES-driver-on-a-laptop-with/m-p/621545#M7381