Is it safe to delete Outlook.bak?

I noticed under my Outlook Application Data folder there a file called Outlook.bak. I also have a file called Outlook.pst, but the .bak file is larger than the .pst file. Is it safe to delete the .bak file? Cos the size is very big, 1.9GB, and it's taking lots of my disk space.
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DraconianSoulConnect With a Mentor Commented:
Hmmm... I can't verify it, but I beleive the .bak file was a feature from older versions of Outlook.  If you had been running an older version at some point it could have created the file.  In which case you really don't need it.  The PST file is very important though, that is where you email resides.

Before you go and delete it, I would suggest copying it to another location on your hard disk and changing the name. That will simulate deleteing the file without actually losing the data.  If Outlook complains, you could move the file back to the original location and name.

Also, check the modify time.  If it has been a significant ammount of time, chances are nothing is using it.
What version of Outlook are you currently using?  Have you ever used an older version?
melwongAuthor Commented:
Outlook 2007
melwongAuthor Commented:
ok, i think you're right. no far Outlook didn't complain. I'll proceed to delete.
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