I have an ISO file of very early build of Windows 10 TP. I had installed it, dual booted it with 8.1 on my laptop, but because of less hard disk space I uninstalled it. Now, I want to install the TP again, and I have a question. Do I need to download ISO of updated build or can I install the old ISO and if I did so will I get updates through Windows update to the latest build?