You may also need to disable SVM in the BIOS of the motherboard.
For example, my tab «Streaming» appeared only after manipulating the BIOS.
How to do it?
For example, TUF X470-PLUS GAMING:
This is really bad change from AMD. There's zero reason to disable streaming when you have Hyper-V enabled and I've decided to fix this myself, since waiting fix from AMD will take forever.
And there's a fix: kill RadeonSoftware.exe with task manager, open RadeonSoftware.exe in your favorite HEX editor and change byte at offset 0x2C3453 (for version 10.1.2.1788, offset will change in other versions) from 0x74 to 0xEB, save file, and open RadeonSoftware.exe again (for example using context menu on desktop). Now you have streaming working...
While that is a curious reason as to why ReLive would be disabled in the Drivers...
what I'm actually more curious about is., why the heck so many of you have Virtualisation Enables AND want to Stream?
Like SVM / Hyper-V makes sense to have enabled if you're cross-platform developing (i.e. running VM Linux, MacOS, etc.) or need to run multiple Web Server Instances... but for regular Desktop / Gaming Usage., what do you ACTUALLY need it enabled for?
This is like that guy the other day who wanted to use a SPM and was disappointed that his Motherboard (which already has the maximum SATA Sockets) didn't support it., all because he had 4 Hot-Swap Bays (which SPM doesn't support Hot Swap) on the front of his case.
And again I just couldn't really figure out a Use Case Scenario where not just buying an Independent NAS wouldn't have provided him with all the functionality he could possibly have needed w/o restricting to a single Rig.
I run VM's on regular basis as well as play games.
I also have Ryzen Master patched in similar way as I patched RadeonSoftware.exe so it runs even with VBS enabled, no issues so far...
For me personally, I do Android Development, and thus i use hyper-v on the Android Emulator, and in this same pc i do gaming/stream daily stuff