1 STOP! For a successful Norton SystemWorks installation, you must first uninstall your current version of Norton AntiVirus. To do this, please go to Add/Remove Programs and click on Norton Internet Security to remove Norton AntiVirus. When Norton AntiVirus has been uninstalled, continue to install Norton SystemWorks. Click OK to continue. 2 Norton AntiVirus 3 STOP! For a successful Norton SystemWorks installation, you must first uninstall your current version of Norton AntiVirus. When Norton AntiVirus has been uninstalled, continue to install Norton SystemWorks. Click OK to remove Norton AntiVirus from your system.