Both Windows 10 and Parallels Desktop in one place!
The main difference between Windows 10 Home and Windows 10 Pro is that the Pro version can be used for business purposes. With the Pro version it is possible to boot securely, it offers support for file encryption and a PC can be taken over by means of a remote desktop.
The difference between a Retail license and an OEM license is that an OEM license only may be installed on new computers (new hardware).
Do you want to use Windows software on your Mac? With Parallels Desktop you can easily install all programs that are normally made for Windows on your Mac! The software integrates seamlessly with Mac OS, eliminating the need to reboot to Windows. You just click on the Windows programs in the menu bar and start!