I have installed Datamine Discover 2019 and have started Discover and activated the license. Then I receive the error "Error MapInfo is not installed in this folder."

Download and install the Discover 2019 update version to resolve this error.

If it persists, check you have MapInfo install and the file exists -

C:\Program Files\MapInfo\Professional\MapinfoPro.exe

If this is missing you will need to download and install the supported version of MapInfo for your Discover version from -

You can use the evaluation or maintenance links, the downloads are identical.