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I attached a 3 GB file to OneNote. Then removed it by selecting it and pressing delete. But file size still remained ~3 GB. I emptied the OneNote recycle bin but still the size was same. I attached same file again and then removed it. Strangely this time size became 4 Gb.

Looks like the file is still attached even after removing. How can I permanently remove the attached file ?

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up vote 6 down vote accepted

You can optimize the OneNote database file which should reduce it's file size:

  1. Open the File tab
  2. Open the Options dialog
  3. Select the Save & Backup entry
  4. Execute Optimize all Files now
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Thanks. It brought the file size down to few mega bytes. – Serious Jul 13 '12 at 15:47

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