Hi,
Yes, I guess we'd hope that Windows and photon would work together, but there are still glitches. I am currently working on the new update from Photon and I'll test on Windows, I think it is addressed but no guarantee just yet.
Simply Delete the Photon Unity network folder and you are good to go.
WARNING: iTween has issues as well, so get in touch with us if you have projects using itween, else you are fine.
Bye,
Jean