Solved! touchpad driver needed

Nov 19, 2018
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i downgraded my asus x540SA to win7 and now touchpad is not working. where can i get the touchpad driver??
what are the possible other ways to solve the issue?
 
Solution
Laptop manufacturer's drivers for X540SA:
https://www.asus.com/Laptops/X540SA/HelpDesk_Download/

However, there doesn't appear to be a touchpad driver available, so you may have to use Asus Live Update or Windows Update.