In a fully updated installation of Vista Home Premium 32-bit, when I run
Control Panel/System/Performance/Advanced Tools/Generate, the System
Diagnostics Report comes up with just one error shown in diagnostics.png
attached.
I have returned Vista to its default SP1 services startup settings using the
registry tweak from:
http://www.blackviper.com/downloads/...Start_v102.zip
and re-started, but System Diagnostics still reports the same error.

(This could just possibly be the reason why SnagIt 9.1.0 crashes vista on
shut down unless SnagIt is closed first. On the other hand this is a known
problem with some installations of this build of SnagIt and the official
workaround is ... to close down SnagIt before restarting the computer!)

Doug.