I find it curious that his idea of "fixing" some existing problem that developed on a machine that was satisfactory for a long time - is to try to ADD a service pack.
If it worked to his satisfaction the last couple years, clearly the pack was not necessary. And unlikely to "fix" whatever problem developed in the original install over time. He wanted to go back, not change to something new.
It's one more variable added to a machine that doesn't need more confusion.
I'm amazed how many people decide to "do something" and hope for majick to happen. Of course this is Stormin's second if not third trip down this road in under five years.