Can't install Corel 2017 trial version, what can I do?

Hi I would like to try the trial version of Corel, but I can't install it. It ends up with a message saying:

"The installation was not completed.

Your system has not been modified. To complete installation at another time, please run the setup again.

You cannot install this product because another version is already installed. To install this product, you must first uninstall the existing version.

Click Finish to exit Setup."

I did uninstall my Corel X5, but keeps sending me this error.... what can I do... now I don't have no Corel installed at all... I need to work, can't lose all day on this!... :-/