I had Win7 installed and Burning speeds were installed. I decided to make a new DVD/ISO of Win7 and just reinstall the OS as a quick and easy way to clear all the crap off my system. Before the reinstall, I burned the 2.3 GB ISO in like 4 minutes. After the reinstall, it takes 45 minutes to burn a 400MB file. There should have been no system changes other than the fresh install. I always ignore Windows Updates then and I still ignore them now so its not their fault.