I am running Vista Ultimate.\nI downloaded the bitlocker update but never did anything with it. It shows\nup in my start menu. I then followed the procedures to download and install\nSP1 RC Refresh. This is my first SP1 attempt. I followed the instructions but\nWU never gave me the option of installing KB935509. I tried to manually\ninstall it and I got the message that it is not appropriate for my system. In\nthe instructions it is necessary to install this update in order to install\nSP1 RC. The next thing I knew, the SP1 update was available to install in WU.\nI stopped the install to avoid problems, but it is still downloading. Am I in\ntrouble now? My system was running pretty much OK.\n\n1) Should I go ahead and install SP1 RC1 Build 6001.17128 or not.\n2) Does the fact that I have never done anything with bitlocker have\nanything to do with KB935509 not showing up in WU?\n\nPlease let me know before I go any farther.