After driver update problem and today issues with Microsoft’s System Update Readiness Tool (KB947821) I had to role back my laptop to the restore point created before each event. Both times NIS 2010 was messed up, one click had to down load smart update again and (I found) you had to get rid of one click that was struggling with things and rune the now working smart update. This then re downloaded the compleat set up updates, 40 odd Mb each time. Its a bit of a pain to say the least and getting NIS 2010 back running took longer each time than rolling the system back to before the problems. I have used system restore when running other security products and never had this problem before. Why is it a problem with NIS?