Hi. I have installed on my Windows XP Professional SP3 Adobe Reader 9.5.0. The updater have notified me that AR XI was available, i have tried to install it, but soon i received the notice "Installation not successful - Error: null". I've tried with many solutions to solve it: disinstalling first the 9.5.0 version (using Revo Pro Uninstaller) e try again. Then i've tried by downloading manually the XI version (i usually use Chrome as browser, but i have tried also with I:E:8 and tried also by saving first the .exe file and running it in a second time). In this case, the Adobe installer progress bar goes till the end and says "Installation succesful", but AR XI is not really installed (no folder in C/Program/Adobe named "Adobe XI" was created, and i can't open any PDF file at all). I've re-installed 9.5.0. version, and tried to install the XI once again (both manually e by the uploder), but the result was the same: or "Installation not succesful - Error: null" (updater), or a "fake""Installation succesful" (manually). Fortunately, the 9.5.0 keeps on working, but i should like to know why the XI version does not. Thank you.
You can try using this tool to first remove all traces of Reader:
Then, you can download the offline Reader installer from
After downloading, restart your computer and run the installer before doing anything else.
Probably the new version is not very compatible with XP. Adobe forgive me, but I do not see much progress in versions ranging succeeding. You could have stayed with the previous version. Or, evolve into the operating system.
I've tried as Claudio suggested me, but it didn't solve. Launching the setup.exe, the process goes ahead until it finishes the "Exctract Installation Files...", but after that, nothing more happens, and no Reader has been installed...
I see. Can you try the MSI installer instead: http://ardownload.adobe.com/pub/adobe/reader/win/11.x/11.0.00/it_IT/Ad beRdr11000_it_IT.msi
Where the hell you got this link?
I had the same problem installing AR XI from zero and the only things I found were the links to the offline installer (.exe) and the acrobat cleaner.
None of them worked, so I had to use another pdf reader!
Why this solution isn't on the troubleshooting page?