After the usual quick and easy installation (under Windows 7) At first everything ran on properly. But from the next day went with me to the problem that I could initially use the Internet for about 1 hour without any problems, then slung the browser "easy on". Is, it went internet moderate nothing, it was "loaded", but did nothing more. This occurred both with the Firefox, and Microsoft IE and could only be resolved that the system had to be completely restarted. After about 1 hour, but the same problem! Again reboot necessary. After the twenty-fifth felt reboot I then created a "System Restore" to a point before installing KIS set 2015, which of course meant that HIS was completely away from the PC. Then reinstalled KIS 2014 and the Lizencode enabled by 2015. Since everything is running again as normal and without complications. The license code has been "transferred" without any problems, HIS continues and does what it should. I think I'll continue (for three PC) only buy a new license and activate GGB. Time. A program upgrade (just to make it "more beautiful" looks) is not necessary in my opinion. Despite this problem (which is why only 3 stars) I will continue to use Kaspersky and buy, because I am very satisfied with the protection.