Installer states it has been installed but all I get is a black screen. What can I do?

I have an iMac and I installed the Adobe reader to open messages and information.  The installer stated I was finished but all I get is a black screen when i open a page that need the Adobe reader.  What can I do to fix this?

Download and install AppZapper (it's a free trial)
Download the offline installer: http://get.adobe.com/reader/enterprise/
Save it, but don't run it yet.
Quit Safari
Open AppZapper.
Go to: Mac HD/Applications
Dragthe Reader 11 Application to AppZapper from there, and "Zap it".
Close AppZapper.
Go to: MacHD/library/Internet Plugins
Trash the AdobePDFviewer.plugin from there
Trash the AdobePDFViewerNPAPI.plugin also
Empty the trash
Mount the DMG and run the installer to reinstall Reader
When it finishes, reboot and open Reader from the Applications folder
Accept the License Agreement and then close Reader
Relaunch Safari
Go to: Safari>Preferences>Security and make sure that "Allow all other plugins" is checked
You should be able to open PDFs in Safari

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