The Question was:
I need to use the Creative Cloud for Photoshop, Illustrator, etc for work so I'd like to install a very minimal windows 10, in Ubuntu VirtualBox, so I can run just what's necessary so Photoshop can run as fast as possible.
This question was closed as being off-topic.
I understand that topic of this question concerns third party software. Help Center > Asking states: Questions that you may ask include: Running third-party applications on Ubuntu.
Not only is VirtualBox third party software but when Windows is running in VirtualBox it is also, by definition, third party software.
Similar questions about running Photoshop in VirtualBox have been asked many times in Ask Ubuntu without being flagged off-topic. https://askubuntu.com/search?q=photoshop+virtualbox
I have not seen one that I consider an exact duplicate.
Third Party are ALL software that does not come normally recommended (100% free software) with Ubuntu in the CD/DVD. For example the Flash and MP3 are proprietary (Until a better software emerges which i have high hopes like Lightspark and Gnash).
My question is: Is this question off-topic.