There’s a lot of uninstall examples at bigfix.me
In my environment, there were a handful of computers that had some other exe version of Dell Support Assist.
The below command silently uninstalled that particular version:
“C:\Program Files\Dell\SupportAssist\uninstaller.exe” /arp /S
exists key “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PC-Doctor for Windows” of native registry