I just bought a refurbished laptop for my mother and found that the touchpad's vertical scrolling function didn't work. Looking online I found a YouTube video which pointed me to it being a problem related to drivers. I thought by going to:
... that I'd be able to pick my make and model and be able to download/install the correct driver, however, after picking Acer E1-772, it then asked me to pick the operating system and therein lies the problem. My OS is Windows 7, but in the link above it only has Windows 8 and 10 as options in the download box, so I wasn't able to progress any further. I tried picking Windows 8 and downloading a Synaptics driver, but it did nothing. I would therefore appreciate any help/advice about this issue. Thanks.
[Edited to remove inappropriate content. - Acer-Jose]