P.S. I also suggest that you restart Windows after uninstalling, then delete folder "C:\Program Files (x86)\Adobe\Reader 10.0" before reinstalling.
If you receive the error message seven after removing and reinstalling Adobe Reader, could you please enable the MSI logging (using http://support.microsoft.com/kb/223300) and then send across the MSI log generated.
I again –just now – uninstalled Adobe Reader 10.1.2 and got an "installation complete and no error codes. However, as before, attempting to open Adobe Reader with the desktop shortcut results in an “Adobe Reader cannot open in Protected Mode due a problem with your system configuration. Would you like to open Adobe Reader with Protected Mode disabled?” Regardless of my answer “Open with Protected Mode disabled” or “Do not open with Protected Mode disabled” the program opens and displays the “C:\Program Files (x86)\Adobe\Reader\Eula.exe is not a valid Win32 application.
I am using Adobe Reader 10.1.2, Windows 7 Home Premium Service Pack 1 and the 64 bit operating system.
I cannot find MSI log.