Unable to install UltraNav Driver for Windows 7 64bit

[rohithf1]

Laptop: Lenovo T400 Type 2768-P1Q

OS: Windows 7 Enterprise 64bit (x64)

I downloaded the Synaptics UltraNav Driver from here. After running the exe, it extracted the setup to C:\SWTOOLS\UNAV\6HGX53WW and tries to install and I get the following error:

"Driver Package Installer has stopped working"



Check online for a solution does not help. I am unable to install the driver. I rely heavily on the touchpad to scroll up and down. My touchpad does not scroll without the driver. Can someone help me get through this?

[ColonelONeill]

Try redownloading the installer and choosing a different extract path.

[rohithf1]

No, it did not help. I get the same error.

Is it something to do with the fact that mine is a 64-bit OS? I did download drivers for a 64-bit OS. Moreover, Lenovo Support has the same setup for both 32-bit and 64-bit, but the extracted folder has different subfolders for each.

Is there a known issue with installing this driver on a 64-bit machine?

Has anyone had a successful install?