system
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Twelveways - Having Ad-Aware SE (of course all definitions up to date) and Spybot installed on your system won’t hurt you at all… it’s very good to have them there. Best of all, they don’t interfere with avast!
Cleaning your system of spyware and adware is very recommended, so you better go and install those applications again…
I’m sure when you install them, update those definitions, they will find tons of nasties in your system.
Cheers !