How to reinstall my touchpad settings?

I recently bought a lenovo gaming laptop without a mouse so to keep playing games i deleted the Elan touchpad setting and now i can't adjust the settings for the touchpad or enable palm check which i desperately need to do now that i have a mouse and started school and need to type lots of assignments. I have lots of important files on my laptop now so resetting it to factory settings will be a pain. Is there an alternative?

Even more additional details: the Model is a Lenovo U530 touch. It runs on windows 8.1 the touchpad settings were under "elan" i guess thats the brand name of the touchpad. I deleted the Elan device settings. I just want to have palm check on. Thats all the info i can think of that is useful if you need anymore info i can respond quickly.