thank you very much for your question. My name is***** and I will try to help you as quick possible.
Do I understand it right that you have a Mac with VMWare installed and in that VMWare Windows XP is currently running? And now you want to install Windows 10 within the VMWare on your Mac, but do not want to perform a fresh install in VMWare, but upgrade your existing Windows XP within the VMWare installation?
Thanks for your patience and best regards,
Hello, I am pleased to have the opportunity to assist you. My name is ***** ***** I can help you solve your problem. What is your computer operating system?