I'll have to come back on that,I rarely go into 32. I have it installed only for bug hunting.
I have tried 32. At first the watermark was showing. I used it for the rest of the day, visitng the same sites (which included technet) you know - been there, done that. Toward the end of my day, I cleaned up any surplus files, defragged and rebooted. The watermark had gone!