I have a relative who understands this computer crap a lot better than me. I still don't have Windows 10 and can't figure out why. But anyway he said that during the installation Microsoft turns off a program or maybe thats not the proper term, it may not be a program but maybe it's a switch of some sort and this allows them to know what sites you visit. He said it is possible to turn this switch back on to block this info from going back to Microsoft. I don't know how but I'm sure there are people here that do.

Rich

Read this in a weekly I get.
Windows 10 is a big leap forward for Microsoft, said David Auerbach in "Slate.com." Unfortunately, one of those steps "is
straight into your personal data." By default, Windows 10 gives itself permission to pass your data to Microsoft servers, gobble
up your bandwidth, and profile your computer usage. But while "its not easy to restrict what Windows collects," it is possible. .For starters, don't use "express install" during setup. Instead,select the "custom install" and turn off the default setting in almost every case. Then' go into Windows 10's privacy settings. Look through all of the dozen sections, "painful as that may be" and decide what you're willing to share.