They don't. If you can get past the rampant paranoia you'd see that they send "your keystrokes" to their server to perform interactive searches from the start menu. Google also do this.
Again, the difference is that Google only does that when you type something in the search field on their website (and they can't even do that if you have scripting disabled). Google does not control your computer. Microsoft
does, and they do send those keystrokes out even when you are not explicitly entering them somewhere which clearly communicates "this is going online" via its interface.
By default, it even does that when you search for local files on your computer. Yes, you can presently turn this "feature" off... for now. But you cannot remove the functionality. The code is in place, it is loaded and
ready to send at any time, you cannot disable or remove it, and Microsoft or some haphazard malware may re-enable it at any time. Microsoft is also demonstrably monitoring which programs you launch.
There is no doubt that MS is collecting program usage statistics, it's undeniable. Every program you run, they know. Since it's a "feature" of the start screen to give app recommendations based on that, it's hardly possible without collecting that data, too (though they could store it locally only).
They send "your files" to their servers in the form of metrics, statistics, and analytics. To send more would be illegal regardless of eula, a contract cannot ever violate local law.
Their EULA and privacy statement
explicitly said, and still says, that they may and will do so. It has been reworded since the first release to sound a lot less threatening when you quickly read over it, but if you carefully read you will notice that it is basically still the same.
Yes, the text now contains references to OneDrive and Outlook in one place, and in another place -- there are several independent ones, three or four -- it states "when you use online services" (which sounds like all concerns were just paranoia) but it also says that Windows no longer is a local operating system but is working as online cloud-based system. In other words, they're saying "only under these conditions... which is incidentially exactly how Windows works".
The words "with your consent" appear all over. That sounds good, because after all if you consent, there's nothing wrong with it! But following "with your consent" there is always an "or if we deem it neccessary" or "if it's in Microsoft interest" in the small print.
Regardless of what the EULA/PS state what they
may do or might do, or what you or me or anyone else might read into it, they demonstrably send crash reports which include memory snapshots, and make it obscure, hard, or impossible to turn this feature off (depending on which version you have).
They do that now. Not maybe, or possibly, but now. Yes, Windows XP did that already, but you could permanently disable it rather trivially.
Not to mention the EU would make mincemeat of Microsoft's European arms if they ever tried such a thing as here in Europe we have proper data privacy laws that value the customer not the company...
In theory, but not in practice. In reality, you get very little out of those nice petty laws. In 2013, the GEZ and their accomplices the registry offices committed a documented 65 million breaches of privacy in Germany. You'd think someone would have to face consequences, but no. The data security assignee looked at it, and shrugged. It's not even considered "wrong", and they're still doing it.
Also, the expectance clauses TTIP will do away with consumer rights int the EU anyway. Basically, according to TTIP, if an US company does business in the EU and things don't go as they like because the law gets in their way, they are able to sue the country for compensation. It's hard to believe not only that the commissioners would agree to such a thing or that they even continue negotiations after that (seeing how you cannot possibly be serious if you have claims like this). But of course they're all corrupt.
The agreement is not signed yet, nor ratified, but that is only a matter of time -- so don't rely too much on a "proper law" being in place.