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


Thses 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 64-bit version of Microsoft Office is uninstalled and the 32-bit version is reinstalled. 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

Important: A logoff/logon or reboot is required.

7 réponses à “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. 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!

  3. 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!

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