Registry Hack: Modify the Undo Limit in Microsoft Office

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Your last 100 actions performed in Word, Excel, or PowerPoint are stored by Microsoft Office. This means you can undo up to 100 of your previous actions. You can modify this undo limit by making a little change in the Windows Registry.

Why You Should (or Shouldn’t)…

Link: Registry Hack: Modify the Undo Limit in Microsoft Office
via http://www.howtogeek.com