If you are running 7 or 8.x your machine is most likely going to surprise you and go right to windows 10 irregardless of if your hardware can actually handle it. For some folks this will be painless and for others it is not going to be a fun time. You can go to my resources page and run the windows 10 when i want it and block this, contact us to see if your system is a good fit or to block this to do this or let it upgrade.
*if you run the blocker from my page this is your choice as ETC does not take any liability for the results.*