Hi there, Thanks for the comprehensive guide! I've followed the instruction and shed off a few seconds of boot time from 26-28 to 21ish seconds, but I used to get 16 seconds boot time in event viewer ID 100. I expect that kind of boot time because I use an ssd. I wonder if you could kindly have a look at my etl file and maybe give me some advice. http://goo.gl/tnlTX3 Thanks very much!