Hi Dave,
Thanks for contacting Syncfusion support.
Please follow the steps suggested in the below KB article link to remove the Syncfusion setup manually.
https://www.syncfusion.com/kb/2324 After following the steps in the above KB, please remove the Syncfusion related packages from the below location if any.
Location:
%userprofile%\.nuget\packages
Also, the Windows Installer Cleanup utility is the Microsoft suggested utility for removing the entries from your machine. If that utility itself didn’t run properly in your machine, please ensure that other applications are working properly.
Regards,
Manivannan S.