On my PC, Windows 10, I download Adobe Digital Editions 4.5, and start the installation. Right at the end of the installation, the setup window seizes to install with "Extract: SymCCIS.dll".
Not possible to close window or complete the installation.
What has happened and how to overcome and finalize a correct installation?
Right click on the Digital Edition Installation file and choose option run as Admin. Then repeat with this the installation.