Do Not Track is an important aspect of online privacy. It allow web browsers to inform websites (through an http request) that you don't want to be tracked for targeted advertising purposes.
Normally when you install Windows using the Express Settings, the Do not Track feature is automatically enabled on your web browser. But since April 2015, Microsoft has changed the way Do not Track being implemented and as a matter of fact, this feature is no longer enforced on its latest web browser.
You have recently switched to Windows 10 and want to enable this setting on Microsoft Edge? The procedure is as follows:
Open Microsoft Edge, click on the More Actions menu > Settings. Go to Advanced Settings and toggle the Send Do Not Track requests switch On: