Ken Blake wrote:

Please do not send the same message separately to more than one
newsgroup (called multiposting). Doing so just fragments the thread,
so someone who answers in one newsgroup doesn't always get to see
answers from others in another newsgroup. And for those who read all
the newsgroups the message is multiposted to, they see the message
multiple times instead of once (they would see it only once if you
correctly crossposted instead). This wastes everyone's time, and gets
you poorer help than you should get.

There is also the issue of multiple usage of resources. There is the
bandwidth to peer the duplicated post across all interconnected NNTP
servers making up the worldwide mesh network of Usenet. There is
consuming more disk space at each of those NNTP servers for multiple
copies of the same post rather than multiple pointers to one copy of the
article. Per server, the resource consumption is small; however, the OP
is not submitting to just one NNTP server. Across all NNTP servers,
consumption is not so small anymore.

Cross-posting submits ONE copy into the Articles database, sends it ONCE
between each of the peering NNTP servers, and consumes disk space for
ONE copy of the article at each of those servers.

If you must send the same message to more than one newsgroup, please
do so by crossposting -- sending a single message simultaneously to
multiple newsgroups (but only to a *few* related newsgroups).

Provided the article is related to each of the cross-posted newsgroups.
In this case, the OP's submission was off-topic to this Windows *7*
newsgroup: the OP has no intention of using Start 10 on Windows 7. The
OP should have submitted *only* to the Windows 10 newsgroup, not shotgun
his inquiry, whether cross- or multi-posted, trying to cull expertise
across multiple audiences. The OP's issue dealt *only* with Windows 10.