Hello and welcome to TSF,
I would recommend you to click on greyknights link below and follow the steps. Get a hjt log as instructed and post it under hjt help forum. Expert help will be with you to clean your system up. Meanwhile run dt-tb fix script which also is a link below to fix your desktop. Disable norton ( better uninstall it) prior to run the script to avoid norton block to the script.
Good luck.
I would recommend you to click on greyknights link below and follow the steps. Get a hjt log as instructed and post it under hjt help forum. Expert help will be with you to clean your system up. Meanwhile run dt-tb fix script which also is a link below to fix your desktop. Disable norton ( better uninstall it) prior to run the script to avoid norton block to the script.
Good luck.