Autoplay not working

I did look at the link and downloaded the app that added the folder and key to the registry. It didn't fix the problem. I noticed and additional problem associated with the download. I don't get any longer a download window that shows the download progress and allows me to click on it when finished to start the installation. I have to go to downloads and search for the download to start it.

I'm using Firefox 20. I checked the ad-ons and extensions and there is no download manager. I suppose that I have to add it to my add-ons. I tried using IE to see if it worked whne I downloaded an app but it won't work and I have to use Task Manager to close it. Oh Boy, another problem. I also have not resolved the autorun/autoplay problem. It still exists and I even tried using system restore which goes thru the process and ends up telling me that it could not finish and suggested that I close my anti-virus program. I did and I still could get it to complete. Any suggestions?

Yes!

Thanks to everyone that helped. I finally gave up and took the desktop into Staples and had their techs look at it. They got the system working and autoplay/autorun now works. Incidentally, the problem with Firefox 20 not showing the download window is also resolved. In version 20, Firefox has a downward pointing arrow in the upper right coner. When a download is in progress, the arrow color turns to green and if you cklick on it, it displays the download window.