The service(s) are not installed by the installer but by a
script or manually. The name for the service indicates that you have installed it manually (as described
here).
If the service (DrServerService or LicenseServerService) is running, the installer cannot operate correctly because files are in use. The proper way to upgrade while having DrServer and/or LicensingServer as windows services is:
1. Close all max sessions
2. Stop the Corona related service(s)
3. Run installer
4. Start the Corona related service(s)
The change of the path for the executable is unfortunate but easy to fix without uninstalling and re-installing any services: Open registry editor, goto
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
find your Corona Dr Service ("CoronaDrServer" in your case), in "Parameters" you can directly change the path for the executable, see screenshot.
Good Luck