Hi,
A little confusion here. You mention a lollipop5 phone, which is Android OS. And then you mention Win7, Win8/8.1 which normally only runs on a Windows phone or a Windows computer (tablet, laptop, or desktop PC). Did you upgrade your Android phone to Windows7/8/8.1? Or did it have the capability to run Windows in a Virtual Machine on the Android phone. To my knowledge, this is not possible. I could be wrong or just confused. This could also be the reason that your thread remains unanswered.
If you are talking about a separate Windows7/8/8.1 device (tablet/laptop/desktop PC); please provide us with hardware specs including Make/Model of the computer/device.
We can then advise you further.
Regards,
<<<BIGBEARJEDI>>>