Microsoft (NASDAQ:MSFT) is banking on Windows 10 to excel where its recent operating systems have stumbled. With a deeper integration between desktop and mobile devices, a new Internet browser, and a focus on the company's virtual personal assistant, Cortana, Microsoft aims to win back Windows users. And PC users definitely need to be won over: in Q2 2015, worldwide PC shipments declined by 11.6%. 

But Windows 10 may be a bit more intrusive than previous versions, and the operating system is already being criticized for collecting too much personal data. So what does Windows 10 actually know about you? Click through the slideshow below to find out.