The first three hits (and the sponsored link) I get on http://www.google.com/search?q=remove+claria might be helpful.
And just to be sure, did you check if it's still gone if you check again, and than reboot and check again. There's a theoretical possibility you're infected each day from a site you visit each day.
Hope this helps.
Kees
I run ?counter spy ? every night and come up with (and remove it) NEXT NGHT BACK AGAIN. Can I permantley remove Claria

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