All Kaspersky did 2011 wrong, makes the 2012 version correct. On my Windows 7 64 bit operating system the program is running reliably, the redesigned interface is very clearly structured and meaningful. It was important for me that the scanner is on resources and hardly draws attention to itself: This was fully achieved, it shows no brake in the system. It starts very quickly, the scanning process is very fast, vulnerability scan, and rescue CD included. I had previously used several virus scanners from other manufacturers, but Kaspersky 2012 is by far the best currently significantly.