An "All-in-One" ISO is a consolidated disk image that contains multiple editions of the operating system within a single file. In previous Windows iterations (such as Windows 7 and Windows 10), AIO images were popular among power users for their versatility.
Leaked concepts show a dock-style taskbar, similar to macOS, that floats above the desktop. The AIO installer would adapt this UI based on screen size (touch vs. mouse).
Installation & Setup
During the boot process of an AIO installation, the user is presented with a selection menu to choose the specific edition required, eliminating the need to download separate ISOs for each SKU (Stock Keeping Unit).
Searching for is currently a minefield. Here is what you are likely to find instead of a real OS:
