THX Danial.
The game is not overly complicated , but it is a kind of quick movements platforms . The problem is that the game needs some speed on the movement of the character. However it is not an exaggeration or need very high requirements .
As I wrote before the export in HTML5 and run in FIREFOX , worked perfectly. I am sincerely happy in performance as Windows 8.1 app after uninstalling the update. But I'm worried that whoever has this update installed will have problems . However hope that Microsoft fix the problem in an update.
I have written to support Scirra to see if analyzing the log of the update can be modified to fix something in Construct . Ultimately I understand that this problem affects all developers who use Contruct or other development platforms in HTML5 format.
In the coming days I would like to show some of my game , I have worked in about 2 and a half months and I'm starting to see the first results to be presented .