I just did a fresh install with fresh partitions on a Core2Duo 2.2GHz 1.5Gb RAM assembled desktop which was lying idle. I now have Win7 Pro SP1 installed. The install was done from a USB and downloaded torrent of TEAM OS (The Rain) was a year old. Now I am getting "1 day until automatic activation" I have purchased a key for low cost from Reddit and plan to activate this and then upgrade to Win 10. My questions are : 1) Should I update now or wait for Win 10 to release? 2) If I update and validate, should I install all the updates or it's not needed? 3) If I install all the updates I will also get the "Reserve Win10" icon. Do I really need this or I can just download and upgrade from Win 10 ISO after it releases 4) Should I go ahead and upgrade with the leaked RTM? I am in no hurry and can wait for some days. Please give correct method to install.