I've checked their official website trying to locate an uninstaller, but failed since everything is presented briefly. The developers of SWITZ Anvirirus don't have an uninstall tool, which means that the first thing to do is to attempt the normal uninstall mode from the Programs in Control Panel. If the software refuses to uninstall, download Revo Uninstaller and go to Start > Turn OFF button > press SHIFT and then click on RESTART. Boot in SafeMode automatically, start Revo Uninstaller, then locate the app in the list and completely remove it. Revo will make sure nothing gets left behind (temporary files, registry files, directories, etc).