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October 29, 2009 12:00 AM

Q. My PDF files don't preview correctly under 64-bit versions of Windows. How do I fix this?

John Savill
Windows IT Pro
InstantDoc ID #103038
Rating: (3)

A. To enable the preview of PDF files in 64-bit OSs, do the following:

  1. Start the Registry Editor (Start, Run, Regedit.exe).
  2. Move to HKLM\SOFTWARE\Wow6432Node\Classes\CLSID{DC6EFB56-9CFA-464D-8880-44885D7DC193}.
  3. Change the AppID value to {534A1E02-D58F-44f0-B58B-36CBED287C7C}.
  4. Reboot.
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  • Stephen
    2 years ago
    Mar 03, 2010

    I found the solution!!! Thanks to the good folks over at http://www.pretentiousname.com/adobe_pdf_x64_fix/index.html.

    For 64-bit Office 2010, it turns out the the same changes need to be made to HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{DC6EFB56-9CFA-464D-8880-44885D7DC193} which is not defined by default and must be added.

    They have come up with a small downloadable utility to do all of this for you. Very nice for people not comfortable in editing the registry.

  • Stephen
    2 years ago
    Mar 02, 2010

    I found the solution!!! Thanks to the good folks over at http://www.pretentiousname.com/adobe_pdf_x64_fix/index.html.

    For 64-bit Office 2010, it turns out the the same changes need to be made to HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{DC6EFB56-9CFA-464D-8880-44885D7DC193} which is not defined by default and must be added.

    They have come up with a small downloadable utility to do all of this for you. Very nice for people not comfortable in editing the registry.

  • Stephen
    2 years ago
    Mar 02, 2010

    I have tried this fix and it is not working for me. Now, I get "This file cannot be previewed because there is no previewer installed for it".

    I am running Adobe Acrobat 8.1.7 Professional on
    64-bit Windows 7 and 64-bit Office 2010 beta.

    Anyone have ideas or solutions?

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