Touchpad drivers (gesture) Windows 7

Hello,

I had a Acer V VN7-591 with "Windows 8.1". The gestures (scrolling with two fingers,...) were working on the touchpad.

I formated and installed Windows 7 for personal reasons, the touchpad is fine but the gestures aren't working anymore.

I installed a bunch of drivers and at the end of the installation it says something like "Synaptics (SynTP) Mouse (10.17.2013) ready to use", but the gestures still don't work.

Thanks for your help, I would like to find a solution for this issue.