I'm not aware of an uncompressed YUV Quicktime component that's built-in to Windows. For that matter, there's no uncompressed YUV component that's built into the Mac OS, either. The uncompressed 8-bit and 10-bit YUV Quicktime components come with Final Cut Studio.
I think there's an old Blackmagic 8-bit YUV component that's available for Windows and the Mac, but I'm not positive. I don't have any Blackmagic gear here. But in theory, you could install that on the laptop and export the Quicktimes in that format on the Mac.
Of course, your client won't be able to play those Quicktimes on their laptop anyway. I can't imagine a laptop could ever have enough bandwidth on the system disk to play back uncompressed video, even 8-bit SD.
You have the option of using the "none" compressor, but you shouldn't, because it's RGB and not YUV. You'll end up with a gamma shift in your footage. "None" is one of those legacy compressors that Quicktime doesn't need any more but that's still there because, well, it's kind of cute, and nobody can quite bear to throw it out.
But a shiny new quarter says it's not gonna be a part of Quicktime X.