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I don't know what I did, but recently when I opened Microsoft Word document, I experienced very slow app switch between it and other applications. When I start Word in Word's safe mode (as described here ), the issue disappears. Now I don't know where to find out which plugins were loaded that's causing the problem. Or where the is if that's the problem. I'm on Windows 7 64 bit. Thanks.

EDIT: I'm using Office 2007.

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Try deleting any addins in this path

%programfiles%\Microsoft Office\Office12\STARTUP


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Both folders are empty to begin with. :( – huggie Mar 27 '10 at 7:19
up vote 0 down vote accepted

It turns out Endnote is the problem and it's documented on Endnote web site.

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This worked for me. The answer was taken from this forum

To fix de problem, you must disable hardware acceleration

  1. Run regedit (Win + R ; "regedit")
  2. Browse to HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common
  3. Create a New Key and name it "Graphics"
  4. Select Graphics, right-click on the right panel and create a New DWORD (32-bit) Value and name it DisableHardwareAcceleration.
  5. Enter Value data as 1

Try to run Word/Excel normally now.

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