I've just upgraded to win10 and I've got a problem (the only on e I've noticed) that the cursor freezes everytime I hit return or tab off the active cell/field etc.
The cursor, mouse and left and right click options freeze for a second or so. The cursor disappears. It happens on every action. It behaves lie this irrespective of which application I am using (including browser based apps).
As an example when I click off this page to scroll down to the send button I have to wait.

I'm looking for ideas of how to track down what's wrong