[bastida]

I've just download the latest version of Calibre, but once I start installind, appears this message:

Another installation is in progress. You must complete that installation before continuing this one.

Of course is not right, but I can't continue the installation, and I must finish it.

I look if any Calibre folder is installed in C:/programe files x 86/, but is nothing there.

What can I do?

Thanks in advanced