After upgrading from 7, to activate I have error code: 0xC004F034: I made a search in the web and most part of answer say the same thing: that the error actually depends on MS servers, and the solutions seem are two: a file batch, that I tried and doesn't work, or push and push " activate " in Settings < Update and security till 10 will be activated. Then searching again in the web I find the advice to disable fw and av: I disable all CIS and 10 is activated. But when I enable CIS 10 results again not activated ( I tried several times ). What can I do ? ( please, not: " change CIS ", and anyway not sure that another software have not the same problem ). Naturally, my CIS version is 184.108.40.20674 with Win10 Support.