Hey folks, I am having the same issue, but I can't even follow the troubleshooting steps - the ghost touches and mouse craziness is simply too fast and out of control. The only thing I can reliably do is do a fake power down by pressing the power button. This is a Surface Pro 3 with updates applied automatically, i think a few days ago when my daughter last complained about Microsoft updating & shutting down the device.
Any ideas, if I can't even get into Safe Mode?
EDIT: I finally managed to shutdown by using ALT+Fn+F4 and really quick Enter when the Shutdown dialog appears. It reboots, no change. Even the lock screen is jumping, as the ghost touches try to interact with the device.
EDIT: Argh, finally managed to reboot in Safe Mode, the touch circle is still going nuts.
EDIT: OK also managed to finally open Windows update, almost got cancelled by the ghost clicks...1607 Win 10 is applied now, with no improvement. I can't believe I paid so much for this piece of trash. This device has had several issues, this one the worst. We have another SP3 that has also had several issues with fans, overheating and pointer issues - MS slipped waay beyond recovery in my books.
Edited by danjah, 07 September 2016 - 03:09 AM.