[NAME]  -  [NAME] said a replacement touchpad solved the problem. So contact Dell Tech Support to arrange for service under the warranty. In the meanwhile, you could plug in a small USB mouse and use that instead of the touchpad. Yes, I know that's only a work-around, but at least the PC will be usable until the touchpad problem gets fully resolved.  I see wired and wireless laptop travel mice for ~$10...
Hi all, After receiving the new Inspiron 7610 from Dell, I have had non-stop trackpad issues that Dell refuses to respond to. This is not a problem specific to my laptop, and has been documented in multiple cases on the internet. It is incredible to me that such a brand new laptop has such a glaring issue on the most basic of hardware, and I strongly suggest you should not buy the laptop. Inspiron 7610 touchpad laggy after software update and when plugged in - Dell Community Inspiron 7610 touchpad problems with random taps and swipes - Dell Community Dell Reviews (Look at reviews for this same issue) Dell Inspiron 16 Plus Laptop | Dell USA
Wish I did not not buy the Inspiron 16 7610