Hi! I´ve been reading the posts since yesterday and so far I haven't found a definite answer to this question (and there might not be one yet, I understand). The thing is that I'm having a huge trouble upgrading my Windows 8.1 PC which is now activated through MS Toolkit 2.5.3. I already downloaded the x64 iso via the media creation tool, and now I've got the ISO on my computer. If I mount it using windows native tools and then run it, selecting "upgrade", will it go through and activate Windows 10 just as if I were upgrading via Windows Update? Even if it is only until january? By the way, has anyone with a toolkit activated windows 8.1 got a permanent W10 activation yet? Thanks in advance!