I use Word 2016 on a PC running Windows 7 64 bit. Today I reopened a new Word document and saw a white popup which read "We'd love your feedback! We have just two questions for you." Unlike most popups associated with Windows, the "X" option was not in a red box and I've never encountered anything like it in Word before. I couldn't close Word without responding to it and clicked "X" to make it go away. I did get a screenshot of it and will copy paste it into a reply if necessary.
Not long before this happened, I had tried opening the same document and Word froze while displaying a message about opening normal.dotm. I was able to close the program and deleted normal.dotm so Windows would generate a new one. Upon opening the document, I also checked if it had any macros enabled. These are the only possible things I can think of which could have triggered it. Is this legit?