I am having the same problem in Reader as in Flash. It will say installing and it got to 41% one time before the popular quote popped up ( unable to contact Trackers) no one seems to know what this is and how to load.I had to do a reset for IE and I lost Firefox then and have ie7, ie8, and ie9 on a 64 bit system running 32 bits.I am trying to set up Chrome as I had it on an older system and it worked very well, maybe if I can get it set up I can download and install with Chrome.
You may want to try the following.
Remove all traces of Reader (not only the program) from your system using the Windows Installer Cleanup Utility. This is no longer supported by Microsoft because it can produce problems with Win 7, but you can still download it from from places like
Then, download the Reader installer from
and perform a clean install.