I had Windows 10 installed for about 3 days and backed it out. During
that process I learned that you have 30 days to decide not to use it.
Since reverting to 8.1, I get popups at every start up telling me about
"upgrading" to the free Windows 10... BTW, the rollback built into the
upgrade did not put my laptop back to its previous configuration.
Things work differently now... My advice is don't do it just yet.

On 8/7/2015 6:13 PM, wrote:
Personally, I just don't understand the rush to install Win10.

From a security mailing list I subscribe to:

--Windows 10 Security and Privacy Issues (August 3 & 5, 2015) Windows 10 collects a significant amount of data from users. The privacy policy is described in the operating system's privacy statement, but users often agree to Terms of Service Agreements without actually reading the text. These articles describe some of the ways user data is gathered and used, and provide recommendations for changing settings to protect privacy.
http://www.wired.com/2015/08/windows...ngs-need-know/
http://www.slate.com/articles/techno...em.single.html
[Editor's Note (Pescatore): Since Microsoft has joined the "updates are free, we will get revenue from selling information about users"
bandwagon with Google, Facebook, etc., Windows 10 does try to sneak a lot of info leakage into the default settings. Enterprise pressure on Microsoft is needed to get these changed to opt-ins before enterprise migration.]

--
Dan Marotta