When i got my 8.1 update, i saw a new setting in my phone Project My Screen . I was trying to make it work, and finally I succeeded with the help of google + + etc. So here is how you can do it. 1. Download and install project my screen windows application from here 2. Install the application in to your PC 3. Run the application 4. Connect your phone with a datacable 5. You phone will show something like the below screen. ouch!! my old screen shot buttons changed?? Okay, try that now.. 6. Click Yes, and you can see your screen on your PC <3..