Q: Upgrade to Mavericks slowed my 2008 mac book down

Hi Ariadne,

Yes, de avira one is the only one remnant of avira, delete it.

You also have to remove the uTorrent entry for SystemPreferences/Users&Groups/LoginItems (do it with the minus sign underneath): use this app sparingly and Quit it after use: it publicizes data from you (IP and other), like any Torrent app.

I would also remove AndroidFileTransferAgent from the LoginItems, unless you do not use it at all, in that case uninstall it completely.

Personally I do not use Pinterest internet plugin, I don't know what it does.

I would remove GmailThis plugin from   MacintoshHD /Library/InternetPlugins   : open that folder and drag the plugin to the Trash.

Restart, empty the TrashBin.

Lex

Thank you so much! Highly appreciate all your help!

No thanks