Greetings all. I am confused on weather to re-install NIS on my machine or not. The motherboard, CPU and power supply had to be replaced in my computer, and the tech who did the work and re-installed my OS (windows 7 x64 and all patches) and also installed CCleaner, Gleary Utilities 5, Malwarebytes Anti-Malware and activated Windows fire-wall and Security Essentials. I am considering re-installing my NIS but I have some reservations. If I do this, I only want to do it once. Should I remove any of the programs. Will I lose a second of my thee install of NIS because of the hardware change and machine ID name. I have a paid subscription until Feb 2016. I am kind of glad that this happened only because 6 years of gunk got washed away.