I run into this problem on one of my machines on an doff again. Using the keyboard only, do the following.
Press Windows key + r. Type compmgmt.msc. Click your down arrow to device manager and press tab. down arrow to "Mice and other pointing devices" press the right arrow. Press delete on all objects under that. press enter when they ask you if you want to remove it. Only remove the mice. Then reboot when you are done with all that are there. Should corect it on reboot...