Hi,
People should try running a thorough registry cleaner just to see how much useless keys are already present right after the install is finished.
Dot net framework also is notorious for adding pointers to a ton of files that aren't there, Silverlight, same story etc. , etc.
The more you use that pc, the bigger the registry gets because Windows just keeps track of things most aren't aware of.
After every monthly check you can be sure you can delete 50 odd keys from the registry. Not that they're harmful per se but why keep trash if you can get rid of it?
Would leaving these keys in be causing trouble in the future ? Who knows, we've just starting to use this OS anyhow.
In the mean time, I like to keep things mean and lean. With a decent registry cleaner you'd really have to be "stupid" to run into trouble and besides, a decent registry cleaner automatically backs up whatever it removes so what's the big deal ?
I take no fun out of reinstalling Windows, especially not one that comes with so many errors that need manual fixing anyway....
Cheers,