I just upgraded from NIS 2009 to NIS 2010 and there is absolutely flawless with NIS 2010 I just installed. No crashes. No errors. No weird things.
However, I want to know if NIS 2010 is compatible with Perfectdisk 2010. NIS 2010 use Insight Optimizer which is same as hard disk defragmenter and might conflict with my Perfectdisk 2010. For now, I can disable Idle Optimizer before use Perfectdisk 2010 to defrag my hard disk then enable Idle Optimizer later.
I am using Windows 7 Professional (Upgraded from Windows XP Professional).
(Off Topic) I just got Grand Doctor of Philosophy degree in Retro Computer Science in November 2008 (Grand PhD). I had no high school diploma as many high school teachers, especially Grade 12 teachers did not properly assess my skills due to my autism and my alexia. I graduated with high school diploma from Sir James Whitney School on June 13, 1985 but my diploma was cancelled by the minister after discovery of staff "hided" my many false failed grades (in Grade 12 level). The minister voided my high school transcript and I lost all high school credits! I had false failed grades on reading course (Alexia) and had false failed grade on Consumer and Career studies as the teacher was maliciously refused to give me required final exam. Anyway, I was perfectly exceled on the computer (based on very old programming) and got Grand PhD degree from University of Ottawa and World Information Distributed University.