It also has no such option in Settings, but the MS installed Dell touchpad driver included a Dell Pointing Devices app where that option is available.
My Dell Lattitude E7440 on the other hand had a clean install using Microsoft install media.
GPS and RF Antenna passthrough (WLAN) For WLAN Main Antenna. This section provides the GPS passthrough and RF antenna passthrough information for the Dell Latitude 7220 Rugged Extreme Tablet. Follow the on-screen instructions to complete the setup. Locate and use Dell apps from the Windows Start menuRecommended. This attachable model features a built-in latching mechanism with quick release button. The charging time for the Latitude 7320 Detachable Active pen is 30 seconds. Introducing: the new iKey keyboard for the Dell Latitude 12® Rugged Extreme Tablet. New! Innovation continues with iKey® and its partnership with the rugged division of Dell. I'm really not impressed with this laptop.IK-DELL-AT Attachable Keyboard IK-DELL-AT I just hope it's not a crappy as the first one. I'm now waiting for a warranty replacement. It's the only gesture that won't work, all the rest like the pinch to zoom and scrolling are working though.
I installed all the latest drivers from Dell but the three-finger Task View gesture on my Alps touchpad isn't working. Then, a few days later, it wouldn't even power on! The power light & the caps lock light up for about 5secs & the CPU fan starts then it goes dead again. I have a Dell Latitude E6420 Laptop and I installed Windows 10. It wasn't a problem with the button because if I did actually press it, the volume would decrease faster. The volume kept lowering itself a though the decrease volume button was being pressed. Anyhow, a few days later another problem appeared. It arrived the same day as the Windows 7 Release Candidate, so the default Windows Vista install, disappeared pretty quickly. The funny thing is that the diagnostic didn't show any problem (!?). Drivers for Operating System(s) Windows 7 64bit. I’ve been looking to get a tablet PC for some time now and I’ve just recently picked up a Dell Latitude XT2, which includes multi-touch support. I could not get it to stop, so I did the next best thing, I cleaned and formatted the SSD. I did a complete system check and it stated that everything is working properly. It does it with the keyboard docked or undocked. Release Fn at exactly same time as power button) & they came to the conclusion that it was a hardware issue. The cursor is jumping all over and wont let me type or open other windows.
I contacted Dell Tech support & they suggested a few things including BIOS update & running a full diagnostic (with power off, hold down Fn key for 3sec and then press power button briefly. The touchpad worked for about a week & then, failed altogether. Things went from bad to worse after the promising "breakththrough" I had with the docking station. Guys, just a quick update on my situation.