(1) I have a licensed KAV (2) . the problems started about december 23, when I move on holidays to my parents house. . the applications the mouse has more problems are the system configuration, internet browsers, and almost any others. . I have run troubleshoot . I have uninstalled and installed the mouse . I have not tried another mouse (I must buy one) . I’m trying to grab a video (3) I have enetered in secure mode and delted all tmp files. The mouse moves erratically in secure mode (4) I have changed to normal boot (5) I have set balanced power options