Make a partition on your drive, backup all the things you want to keep on that new partition, format the OS partition and install fresh, then copy over all the stuff you saved.
This is as close as you're going to get.
Upgrade using a Windows 10 Pro product key
Select the Start button, then select Settings > Update & Security > Activation . Select Change product key, and then enter the 25-character Windows 10 Pro product key. Select Next to start the upgrade to Windows 10 Pro.
that is the only right way how to do this ...
i'm closing this thread because answer is giving ...
when you do not believe me then use google you will get the same result !!!