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


These error messages are displayed when selecting a Word (.docx), PowerPoint (.pptx) or Excel (.xlsx) file in the 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 32-bit version of Microsoft Office is installed after having uninstalled the 64-bit version. This leaves references in the registry to the 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.

9 réflexions sur “Office: There’s not enough memory or system resources to start”

  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. Christian

    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!

  4. Wow! I have searched the web high and low for a solution to this problem with no luck. The are many forums with long trails of people with the same problem with no solution. Thank you so much to the person who took the time to figure out this problem and then to share with everyone! Works like a charm!

  5. I can’t say how much I am grateful for this guide. I was finally able to get rid of this super annoying problem that nobody in our IT could solve.

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