My new work station is an Apple with Windows 7.
when I didn't have enough work to occupy my mind during downtime
but I take it from your comment it really is a Windows operating system running on the Apple hardware. I ask because
I just wanted to make it known that even with the IDE on a thumb drive it can be seen by a network manager doing his job.
By the way Bill; why are you reading my mail?
In my experience, if someone "above" you is mad at you for doing something, you will hear about it, rather than have them sneakily prevent you from doing things.
In fact, having a whole paper trail of "they were warned" is pretty important if you want to actually fire someone (at least in the US.)
Arduino requires that drivers be installed, in addition to the IDE. It doesn't seem unlikely that a new windows7 install might not include those drivers (it's a more interesting question, why the old install DID have them.)
Have you considered ASKING whether they could install Arduino?