Change Your Privacy Control Settings Under Windows 10
Windows 10 is now available and is designed to use the cloud and information it can learn about you to make your experience more robust. The problem is that this relies on data, your data it collects during use. This includes the websites you visit, purchases you make, the commands you give to Cortana and more.
You have the ability to limit the data that Windows 10 collects. You can do this during the upgrade/install process or later if you have accepted the express settings during this process Here’s how:
Go to “Settings – Privacy”. Under general you find the basic privacy options as shown below. 
These settings are self-explanatory and making changes here are the primary step you can take to limit Windows 10 use of your private data.
Just as you do with your smartphone you can restrict Windows 10 from having access to your location. While your computer probably does not have a GPS module like your smartphone, it can get a pretty good idea of your location by determining the location of your internet provider by examining the:
WAN IP
Your WAN IP is your Public IP address. It is similar to the street address of an apartment building. Your LAN IP is provided to your PC by your router, and is similar to the apartment number in the apartment building. You can find your WAN IP by entering “What is my WAN IP” from a browser window.
Perhaps you want to use location settings for a weather app for example. You can control access to this location down to the application level as shown below. You can clear your location history at any time.
If you have an iPhone, you are familiar with Siri. Cortana is Windows 10’s answer to Siri. From Microsoft’s privacy statement:
To enable Cortana to provide personalized experiences and relevant suggestions, Microsoft collects and uses various types of data, such as your device location, data from your calendar, the apps you use, data from your emails and text messages, who you call, your contacts and how often you interact with them on your device. Cortana also learns about you by collecting data about how you use your device and other Microsoft services, such as your music, alarm settings, whether the lock screen is on, what you view and purchase, your browse and Bing search history, and more.
Cortana analyzes your speech, and that information is sent to Microsoft to build personalized speech models and improve speech recognition. This kind of tracking is common to all these services because they can not function without it. If you are not comfortable with it, you can turn off Cortana entirely, and/or manage the information that Cortana knows about you.
These settings are found in “Settings Privacy – Speech, inking & typing”.
Sending Diagnostic information is intended to allow Microsoft to monitor the errors of it’s users and help them find solutions. Under “Settings – Feedback and Diagnostics”, you can limit the amount of information sent to Microsoft.
Let’s move along to “Settings – Network and Internet”, and then select “Manage Wi-Fi Settings”.
Note: These settings are primarily intended for mobile devices. When you using Windows 10 on a desktop PC and are using an ethernet connection these settings really do not apply.
If using Windows 10 on a laptop or tablet, and routinely take your device outside of your home, you will be interested in a new feature of Windows 10 “Wi-Fi Sense”. The first setting will allow you to automatically “Connect to suggested open or public hotspots”. The second option will allow you to “Connect to specific networks shared by my contacts”.
Per the Microsoft’s Wi-Fi Sense FAQ, this setting relies on Microsoft’s user populated database of open WiFi hotspots. This allows you to take advantage of other people’s experience with available hotspots.
The second setting allows you to easily share a WiFi password with a friend or associate. You can specify which contacts with whom you are willing to share this WiFi information. At the bottom of this page, you can select which specific WiFi network you are willing to share.
Any Wi-Fi password you share is encrypted and stored on a Microsoft server somewhere.
In any event, it is important to note that WiFi Sense only provides internet access, not file sharing access.