upgraded to windows7 sp1 now
It took me about 1 hour to finish installing the 537MiB big SP1 off-line installation package. I have yet to find anything different, except the service pack 1 mark on the properties page. One thing worth pointing out is that: after the upgrading, there will be a thread (or process?) called "mscorsvw.exe" that eats up your system resources. There's a detailed explanation on what the thread is for and how to get rid of it. Check out the below link:
http://go.redirectingat.com/?id=673X542 ... %26t%3D211