Some chip makers and PC vendors at CES this week are leaning toward using the OS on mobile devices, but companies such as Nvidia are building hopes that porting Windows to Arm will finally give them an opportunity in the PC space.

Most of the world's PCs run on Windows, which works only with x86 chipsets from Intel, Advanced Micro Devices and Via. With Windows for Arm, users will have an alternative to move away from x86 to Arm-based computers.

Arm is used in most of the world's smartphones and tablets, and when Windows becomes available for the platform, Arm can think of going upstream into PCs and servers, said Jack Gold, principal analyst at J. Gold Associates.

But at a practical level, it's likely that the Arm-based Windows won't be seen any time soon, as it's a major effort to port the OS, Gold said.

"It is likely that we will see a subset of Windows hitting Arm before there is a full version. So, it's likely to be targeted at tablets and such," Gold said.