temp file created in outlook folder

rczuba used Ask the Experts™
In the outlook file of a user's profile we find the ost. and pst. files.  We've also found temporary files ( prfc99.tmp, prfa7.tmp) that are just as large as the ost. file.
Can we delete the temporaries? What are they?

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Yes it is safe to delete them but you need to look into what is cause them.
Top Expert 2011

- generally it is safe to delete them but to be precaution, why not move the temp files to other folder temporarily and wait for a couple of week before deleting it. so if any unlikely event happen, you can put them back in.

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