Alek wrote on 06/22/2016 2:32 PM:



If you've installed 3035583 and wish it to provide the most accurate
compatibility for applications and devices *and* desire to upgrade to
Win10 then install it.

If none of the above apply, it can be hidden.

If 3035583 is not installed, then installing it does no harm(i.e. it
works as an adjunct to 3035583).

Imo, if using 8.0/8.1. upgrading to Win10(for free until July 29, 2016)
is a reasonable choice. One could always upgrade, then return the
system(via imaging software) to 8x after upgrading and having obtained
the Win10 digital license for the life of that upgraded and supported
device.

And then could I install 10 at a later time?


Once you've upgraded the device from a qualifying o/s(7/8x) and have
activated and obtained the digital license for Win10 for *that* device,
you can install(clean install) Win10 on that device at any time in the
future (even after the free upgrade offer expires).

Keep in mind, as noted previously the digital license is for the life of
that upgraded and supported device.

What if:
Changing the mobo after obtaining the digital license ?
- No longer the same device [1]

[1] If your Win 8.0 or 8.1 was a retail version(not an OEM pre-installed
or System Builder installed - the latter doesn't matter if someone built
it for you or you built it yourself, its still an OEM version) and you
upgraded that retail 8x to 10 then you may be able to convince MSFT
Activation Support personnel install 10(after a mobo change) on that
same device(with the new mobo).


--
...winston
msft mvp windows experience