Woah, there are many questions you are asking here! Let's go one by one.
Well for the first question: What do you mean? I have Rollback installed on my home laptop (which is on Windows 7) and it works fine.
What do you mean by a more "general answer for enterprise laptops"? If you are looking for a software solution for public access environments, try Drive Vaccine. It is also from Horizon Datasys and can recommend it because I use it in my own business. It basically wipes your computer every time you restart it. So like in a public domain in where many people use one computer, you won't have to worry about any permanent changes being made to your PC.
The proposition of Rollback Rx is that of an instant time machine. This software functions on snapshots, which in a case of a system crash or virus, one can go back to the snapshot or moment before your PC crashed.
I hope this answers all your questions!