MacOS – MacBook Pro 2015 install app on external drive including a cloud storage drive

macmacosms officeusb

I would like to install MS Office 2016 on my MacBook Pro but there's not enough space. I thought of installing it on an external USB drive. However, I got an error message that "Microsoft Office 2016 can't be installed on this disk. OS X isn't installed.", and hence I couldn't install it.
Is there anyhow to overcome this situation?
I have one more question which is, is it possible to consider a cloud storage drive like Google Drive as a kind of USB and install an app on it?

The message I got

Best Answer

No, you can not. The very fact that it requires you to go through the install procedure means that there is more going on than just a file being copied over to your Applications folder. Things are being installed in your systems folders, which is the reason why you need to select a drive with Mac OS X installed.

If you were to do as @NoahL said in his answer, the program would only run on computers where the installer had been run in the past.