Draftsight 2019 Standard will not install

Anyone deal with "Error 1316 The specified account already exists", or "Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: Uninstall_swinstactsvc.exe, location:...\\swinstactsv..." I am trying to execute my initial install and it is going very poorly. Just bought Draftsight2019 today and already cancelled the subscription so it won't renew in a year. I used the free versions for years and never had any problem. Too bad. I have tried re-downloading the installer, restarts, registry cleans. Nothing works. This seems to be the only place I can turn for help with the DS Standard version.