I just got a genuine Win7 Ultimate Key and I'd like to use it on my system, but I can't figure out how to remove the loader. (It's a really good loader, but I can't use suspend to ram sleep with it.)
I'd leave it and keep the key for future use - who knows you may upgrade your computer or M$ might render loaders unusable in future and you will have a brand new key. I'd probably reinstall if you really want to. I always have a second drive - either an actual drive or at least a second partition - and I always move may data to that so that a reinstall isn't that big a deal.
I had a similar problem with my Dell that would lose SLIC info in memory when it came out of standby. I reapplied my l**der and choose another OEM system. IE I used Acer instead of Dell. It now works fine when it wakes up. I can run the SLIC dump tool and it will display SLIC from memory. Wouldn't do that before when I used Dell. Might try it to see if it works for you?