During uninstallation installer throws Error 1921,
Logon User have admin privilage to uninstall the product, but installer message contains 'does not have sufficient privileges',
please check below installer message..

Product: MyProduct -- Error 1921. Service XYZ Service (XYZ Service) could not be stopped. Verify that you have sufficient privileges to stop system services.
Error 1921. Service XYZ Service(XYZ Service) could not be stopped. Verify that you have sufficient privileges to stop system services.

Please help how to fix this issue.