I just upgraded Windows 8.1 to Windows 10 on my laptop. Everything looks good except that I cannot find Kaspersky Anti-Virus. It used to work well on Windows 8.1. I bought the full version of Kaspersy and there are still more than 200 days until it expires. All its icons are gone. Even in the (C) disk, I found the anti-virus folder but no icons in it. What should I do?