Hi, I installed Windows 7 Ultimate x64 years ago using old time loader version (forgot ver number, 1.9ish I think??), I even forgot whether I activated it online or not <.<. It works fine so far (Never updated though <.<) Now I need to install SP1 for something, is it ok to update it from Windows Update Service ?? or will it wreck my windows. (I try to avoid re-installing windows as much as possible, because of data etc). If it isn't ok, what should I do to obtain SP1 ?? Should I "re-activate" my Win 7 using the newest loader (2.2.2) from this forum ?? Any updates that I should avoid ?? (Like which KBxxxxxx) Many thanks, and I'm sorry if this question is a newbie and/or annoying question.