Try this method and I am certain it will work.
Installing SSL VPN for Windows 7 (32 & 64 bit versions)
Under the control panel, go to user accounts, and then user account control settings
Disable UAC settings completely (turn slider all the way down to "never notify")
Save settings, and follow prompt to reboot the system
Follow normal SSL VPN install instructions. You will receive a prompt whether you
want to allow the system access to install the software (this is what was being
blocked by the UAC previously).
Once the install is complete and you are able to see bytes sent and received, log out
of SSL VPN, and reverse the procedure of disabling the UAC settings, changing them
back to your previous default
Follow the prompt to reboot the computer, and you should now be able to connect
with SSL VPN while the UAC default setting is enabled.