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Outlook will not expand all the sub-folders and gives an error message about inadequate free memory

Hello Experts:

I have a client who is using Outlook 2007 Hybrid Pro. The data file is just over 15GB with multiple sub-folders and sub-sub-folders. When he tries to open some of the sub-folders, he gets the error: "Cannot expand the folder. There is not enough free memory to run this program. Quit one or more programs and then try again". Some of the sub-folders will expand and some won't.

I edited the registry expand the shared memory to 0x800000 and the problem persists.

I copied the .pst file to my test machine (running Outlook 2010 Pro and I can expand the folders that will not expand. Does he need to upgrade? Reinstall?

Other thoughts?

Thanks
thedslguy

Sam Simon Nasser

office 2007 is somehow considered old. if problem is solved using 2010 and above versions, i do recommend upgrading.
another questions: what is your host (gmail, hotmail) or normal domain hosting? what are using (pop3, imap)

try this also: right click your mailbox

choose properties - advanced - compact now

this will compact the file size, but in the future you may experience the same issue

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Sam Simon Nasser

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thedslguy

ASKER

Sam Simon Nasser:

I posted a response to you earlier and I guess it fell through the cracks. But what you told me about the file size did help me find the solution.

His issue was that the .pst file was corrupt. I had to import it and fix it on one of my shop computers and export it back to him.

You should absolutely be awarded the points, and I apologize that it hadn't already happened.

Thanks for your help.

thedslguy