[SOLVED] How long can I run Windows unactivated

I have a test of an Unactivated Win 10, installed in a VM, to test exactly this.

Installed Dec 8, 2016. 1,271 days so far.
Runs exactly as Day 1. Gets all updates, etc.

Of course, there is that randomly appearing watermark at bottom right, and MS could easily cut that off at any time.
Oh so it works just with a watermark?
 
Wait so I can’t add apps to desktop or taskbar??
New installed applications will appear on the desktop, and you can pin thing to the taskbar.

But this:
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