I installed Oracle a few months ago. (I have since uninstalled it.)
Ever since, my sidebar gadget "all cpu meter" has been broken.
I'm not 100% sure that Oracle installation is directly responsible, but it's the best thing I can come up with.
Link Removed
Additionally, my 'core temp'...
64 bit
ati
cleaning
command prompt
core temp
cpus
gadgets
malfunction
multimeter
oracle
performance
registry
sidebar
support
system specs
temperature
troubleshoot
upgrade
windows 7
windows 8