app installation problem - directory not empty

Trying to install Miktex after uninstalling it in Win 10. Have read other apps fail to reinstall with same error message: The specified installation directory is not empty. Have run installation as admin.
Can install in different directory, but other apps that interface with this app fail.

dalchina said:

Hi, not an unusual situation. Depends if the uninstaller deliberately leaves configuration data behind (sometimes that's an option on uninstalling) or maybe the uninstaller has been poorly configured.

If you prefer you could manually delete the folder before installing.

Thank you; removing the folder is the key. Initially, after the uninstall the folder disappeared. When the Recycle bin was emptied. Then, after deleting it, the install completed.