I have a Dell laptop on which I'm running Windows 10. That system plays host to a virtual machine in which I've installed Windows 8. I'm using my Microsoft account to access both. However, I'd like to keep the theme on each separate. Unfortunately, shortly after I have started Windows 8 in the virtual machine, the backgrounds will sync up. I believe my options are to switch one or both of the systems to local login, or change the settings so that the background or themes are not synchronized. Any suggestions would be greatly appreciated.