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I can't open any PDFs in IE10 on Win7 64bit.

I've tested with PDFs from Intranet / Internet / local file system, http and https. I've tested installing/uninstalling Acrobat Reader 11.0.03 and the Nitro PDF Reader. I've also tried enabling/disabling the Tools > Internet Options > Advanced > Security > Do not save encrypted pages to disk option.

In Google Chrome PDFs are opened in the Acrobat Reader Plugin, but in IE10 the only thing I always get is a small cross in the top left corner of the browser.

Can anybody help me?

  • does this happen also in firefox with the pdf viewer plugin? – luchosrock Jun 28 '13 at 14:31
  • In firefox pdf's are also open correct in the acrobat reader plugin. – J.Middendorf Jun 28 '13 at 14:34
  • You want IE to open a PDF in IE or open the file with Acrobat? – user142485 Jun 28 '13 at 14:35
  • When possible i would like to open it in IE with the Acrobat Plugin. – J.Middendorf Jun 28 '13 at 14:37
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    @user203298: Post your solution as an answer below instead of a mere comment that others might miss. If modifying TabProcGrowth solved the issue, looks like Adobe Reader's plugin is 32-bit whereas IE10 is 64-bit, so you need that change to make IE10's tab processes be 32-bit too. See here and here for more. – Karan Jun 28 '13 at 17:12
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This solution worked for me. Pdf won't open while running IE10 on Win7

  1. Close IE
  2. Open the regestry with regedit Start -> type regedit + enter -> change “HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\TabProcGrowth =1 instead of 0 .
  3. Reopen IE and try to open a pdf.

See also: 32-bit browser applications may not work as expected in Internet Explorer 10

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  • Uninstall all PDF readers
  • Reset Internet Explorer (click the gear in the top right corner of IE>Internet Options>Advanced tab>Reset button>Reset button. Close IE.
  • Download Adobe Reader from: get.adobe.com/reader
  • Thank you, but still IE10 just show page with a small cross in the top left corner. The html code of the page is['code'](<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML Transitional//EN"><META http-equiv="Content-Type" content="text/html; charset=unicode"> <html> <head><style> </style></head> <body topmargin="0" leftmargin="0" scroll="no"> <embed width="100%" height="100%" src="file:///C:/Bus_15.pdf" type="application/pdf" fullscreen="yes" /></body></html>) – J.Middendorf Jun 28 '13 at 15:28
  • You could try uninstalling Acrobat and trying a different reader ( foxitsoftware.com/Secure_PDF_Reader ). Maybe post a screenshot of what you are getting. – user142485 Jun 28 '13 at 15:37
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    Ok with this solution i found on [Pdf won't open while running IE10 on Win7][1] I could solve the problem. 1. Close IE 2. Changed “HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\TabProcGrowth =1 instead of 0 3. Reopen IE and try to open a pdf, in my case it worked [1]: answers.microsoft.com/en-us/ie/forum/ie10-windows_7/… – J.Middendorf Jun 28 '13 at 16:48

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