Windows
On Windows, you may uninstall plugins using Windows Add or Remove Programs, the SSL uninstaller app in Program Files, by removing instances in the folders below, or by searching your machine for keywords to find their location.
C:\Program Files\Common Files\VST3
C:\Program Files (x86)\Common Files\VST3
C:\Program Files\Common Files\Avid\Audio\Plug-Ins
C:\Program Files(x86)\Common Files\Avid\Audio\Plug-Ins
C:\Program Files\VSTPlugins
C:\Program Files\Steinberg\VSTPlugins
C:\Program Files\Common Files\VST2
C:\Program Files\Common Files\Steinberg\VST2
C:\Program Files (x86)\Steinberg\VstPlugins
C:\Program Files (x86)\Common Files\Digidesign\DAE\Plug-Ins
C:\Program Files\Cakewalk\VSTplugins
macOS
Manually remove individual plugins from the following folders or search your machine for keywords to find their location.
Macintosh HD\Library\Audio\Plug-Ins\Components
Macintosh HD\Library\Audio\Plug-Ins\VST3
Macintosh HD\Library\Application Support\Avid\Audio\Plug-Ins
Macintosh HD\Library\Audio\Plug-Ins\VST