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I have Acrobat Pro X on my Win 7/64 Ultimate computer.  Acrobat Reader won't start.

Apr 13, 2012 4:50 PM

Tags: #adobe_reader_10 #acrobat_x_pro_windows

I have Acrobat Pro X and Acrobat X Reader on the same Win 7 64 computer.  Acrobat Reader won't start.  After a couple of hours of web and Adobe Support searching I spent $39 on paid support.   90 minutes later I am told by a Level 2 support specialist, we don't recommend you put Acrobat X Pro and Acrobat Reader X on the same machine because they conflict with one another.


If this is true, why was this information so difficult to find ?   Why didn't the Level 1 support specialist know this ?   Why isn't it 2nd on the list for Adobe Reader installation Troubleshooting, just after try reinstalling the product.  

Hundreds or thousands of people must be silently suffering with this problem on 64 bit Win 7 computers  (my 32 bit machine isn't having the problem).


The "Adobe Reader has Stopped Working" error message is no where to be found.


If you have ever had Acrobat Reader installed on your Win 7 PC, you have to remove it from the Registry.  Just changing the file type associations is not enough.   If it's a PDF and you are looking for files - the hover / file preview feature in (file) Explorer expects to use Reader, not Acrobat, so it stalls and occasionally locks up my system.

  • Currently Being Moderated
    Apr 13, 2012 6:08 PM   in reply to CLDesign3

    As I understand things, Adobe has always recommended not to have both Acrobat and Reader installed in the same Win machine. This changed with the advent of versions X of these programs, which we have been told are compatible.


    If I had your problem, I think I would try running this fix from Microsoft: to uninstall all traces of any versions of Acrobat and Reader in your system. To reinstall Reader, I would suggest downloading it from

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  • Currently Being Moderated
    Apr 16, 2012 6:13 AM   in reply to CLDesign3


    Could you please let me know:

    1. The exact version of Adobe Acrobat and Reader installed on your system. You can check the same vy clicking on Help > About Adobe Acrobat/Reader

    2. The anti virus software installed on your system.

    3. Is there any specifc operation that is being performed that leads to the Adobe Reader ceasing to work.

    4. Does simply launching Adobe Reader (without launching any PDF) also cause the same behavior?




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  • Currently Being Moderated
    Apr 16, 2012 9:35 AM   in reply to CLDesign3

    Thanks a ton for the information provided. Could you please try out the following steps and see if it helps:

    1. Navigate to the Adobe Reader installation directory. (Generally it would be C:\Program Files (x86)\Adobe\Reader 10.0)

    2. Delete all the files and folders present in the directory. Ensure that the Reader\plug_ins directory is deleted.

    3. From the Programs and Features option in the Control Panel, Repair the installation.

    4. Restart the system if prompted to do so.

    5. Try and launch Reader and see if you are able to launch the same successfully.


    Also, please try and see if disabling the antivirus software (temporarily) helps solve the problem.




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  • Currently Being Moderated
    Apr 16, 2012 10:31 PM   in reply to CLDesign3

    Thanks for trying out the suggestion again.


    Could you please let me know which DLL is it that is causing the problem? i.e. the name of the DLL.

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