Office: There’s not enough memory or system resources to start


Error messages when selecting a .docx/.pptx/.xslx file in Windows Explorer preview pane:

  • There’s not enough memory or system resources to start PowerPoint
  • There’s not enough memory or system resources to start Word
  • Excel displays an error message with a red cross icon and no text


This happens when the 64-bit version of Microsoft Office 2013 or Microsoft Office 2016 is uninstalled and the 32-bit version is reinstalled. This leaves references in the registry for 64-bit Preview Handlers.

To fix these errors and repair the preview pane, run Regedit as administrator and delete these registry keys:

Microsoft Excel previewer:


Microsoft PowerPoint previewer:


Microsoft Word previewer:


Microsoft Visio previewer:



A logoff/logon or reboot is required.

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6 commentaires

  1. Thank you, this worked fine for my problem. A new Windows 10 computer, I installed on it Office 2013 and could not preview any of the Office documents. They all gave a different error messages. I was lucky to find this post. Thank you.

  2. Thanx,

    i have office 2013 clean install but I have the problem for Word and Excel preview.

    Deleted Keys: perfect result!

    Thanx from Italy

  3. Thanks, very useful advice! I had the same problem as Cemal, and deleting the registry keys worked perfectly. Very happy I found this post. Merci mille fois!

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