Please use
Symantec's guide to remove the quarantine files.
Then locate & delete this file:
C:\Documents and Settings\Ronnie\.jpi_cache\jar\1.0\arc.jar-31224e69-258d5ed5.zip
Do you have the installation file for Norton antivirus? Norton is a notorious resource hog. If you feel your computer is slow, you should consider uninstalling it. If you do uninstall it, I suggest that you replace your security needs with NOD32 (not freeware) or
AVG (Freeware)
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Question - what have you done for the community today?