You might want to have a look at this
thread. Windows 7 is a fairly new OS so there are still some issues getting uncovered. However, most of the reviews regarding CRM deployed on Windows 7 have been positive.
A couple of questions,
not sure why you are applying both Update Rollup 1 and 2 as all you would need is 2 since it is cumulative. I'm also not sure why you need to make registry changes? Maybe consider upgrading your system to the latest update -
Update Rollup 6 as that update might be more stable than the earlier ones.
Best Regards,
Donna