You may find, however, that trying to uninstall antivirus on Windows is harder than a regular app! Some may require special steps in order to uninstall them, and it may take a bit of searching the ‘Net to find out how to uninstall an antivirus. It’s not advisable to have more than one antivirus installed on a PC at a time, so the old one should be uninstalled. Perhaps it’s beginning to cause problems, or you want to try out another one. Sometimes an antivirus just isn’t working for you.