Feb 182008
 


A lot of users nowadays face the necessity to convert all information from Microsoft Exchange (files with the .ost extension) into files of the Microsoft Outlook mail client (.pst files)

First you need to Download ost2pst.exe file from here and install this program

Once it opens you should see similar to the following screen here you need to select the .ost file to convert .pst format

Once this finished you are ready to import .pst file in outlook

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  72 Responses to “How to Convert OST to PST format for outlook”

  1. Hi…
    I have just used this tool after a nearly catastrophic failure of Outlook, and it seems to have worked just fine. Compared to other tools that are doing the same thing for as much as $500 (!), this is a highly valuable tool. Thanks mightily for making this available.

  2. I have received an: Internal error (code=0000000E)
    Message and nothing happened to my OST file, except, that I had a backup of it with PST extenstion, which is still an unacceptable format to Outlook 2007. The OST file comes from an Outlook 2003 program

  3. Hi!
    I’m also receveing the; Internal error (code=0000000E)
    I’m trying to export a .ost file from outlook 2003 and get a pst file! The .ost file i’m trying to recover is 1.1 GB ..
    Anyone know what to do?

  4. Hi,

    Does anyone know if this works with Outlook 2007? I’m trying to save/extract my data from an OST file where the exchange server has died including the backups :-(

  5. Same issues here as others, get the internal error (code=00000000E) and are left with a copy of the original .OST file with a .PST extension.

    OST is 1.2GB, created by Outlook 2007…

  6. Same issues here as others, get the internal error (code=00000000E) and are left with a copy of the original .OST file with a .PST extension.

  7. Hello!
    I’m also receveing the; Internal error (code=0000000E)
    I’m trying to export a .ost file from outlook 2003 and get a pst file! The .ost file i’m trying to recover is 1.1 GB ..
    Anyone know what to do?

  8. Same issue as others, Internal error (code=0000000E). Attempting to convert .ost from Outlook 2003 to .pst file. The .ost file is 345MB. Ideas? Anyone?

  9. Hello!
    I’m receiving the internal error (code=00000000E) as well.
    Does anyone know how to get through this?

  10. Hi Guys,
    I’m receiving the internal error (code=00000000E) as well.
    Can someone help, please.

  11. This little utility only works with outllok 2000 and xp ost files! The internal architecture of outlook 2003 and 2007 is changed

  12. Same internal error. However, I am using Outlook 2003 and XP, but still same internal error

  13. Same internal error, does anyone have a solution for this error? I’m using Outlook 2003.

  14. Dear All,

    After I used this, appear the internal error (code=00000000E) as well. Can someone help, please ?

  15. The error code many people in this thread are receiving is because the mentioned software doesn’t work for Outlook 2003 and up. I have only been able to find expensive tools with trial versions for newer .ost file recovery.

  16. Dear All,

    After I used this, appear the internal error (code=00000000E) as well. Can someone help, please ?
    Any orther software have a same funtion??

  17. I get the same error can some one help or referrer another program thx

  18. Dear All,
    My original .ost file (1,6Gb) comes from Outlook 2003 file copy.
    At first I tried to replace the new one Outlook 2007 Data file, on Offline, with my .ost file and – with the same name as the new one Outlook Data file.
    Unfortunately the answer was – this is not the .pst file.
    After I used this (ost2pst.exe), appears the internal error (code=00000000E), but it made the backup file with .pst extenstion, as well.
    Unfortunately this .pst file is not opening neither with Outlook 2003, nor Outlook 2007, too.
    Report: This is not the .pst file.
    Can anybody has the other ideas?
    Help, please!

  19. Same here internal error (code=00000000E)using outlook 2003

  20. I’m trying to convert an Outlook 2003 .ost file to an Outlook 2007 .pst file – does anyone know how? Would really appreciate the help!

  21. I tried to convert an outlook 2002 OST to PST using this tool. The PC the OST file was written on was runing Win/Office 2000. The PC I was performing the OST2PST conversion was running XP. Most of the folders converted but were empty when opened. The file itself retained its 28 MB size but the emails can’t be found.

  22. Same Internal Error
    2.0 GB File
    2003
    Is there any other program that supports Outlook 2003 and Up? Answers?

    role.model@hotmail.com

  23. just gives me : Internal error (code=0000000E)

  24. when i conver have problem: nternal error (code=0000000E)
    who can explain?
    Thanks

  25. just awesome,, yup just awesome…
    Thank you!

    worked perfectly, and imported into office 2007 no probs

  26. not working. internal error code 0000000e

  27. Worked wonderfully, thank you! I was able to retrieve from my Exchange OST from 1999 hundreds of emails that I haven’t seen in…well, ten years! I’m very happy with this utility.

  28. Yea, this is a fail for me too. get the same error message that everyone else was getting. using outlook 2007 ost file size is less then 100mb.
    Shame cause this would have been a pretty good solution.

  29. same error.

  30. I got the same error but had a pst file outputed. For the heck of it I opened up the pst file in outlook and guess what …. all the data was there even though the program crashed while converting! thanks.

  31. error code = 00000003

  32. Tried to convert a 2007 OST file to a PST file. Got the same error as everybody else. WTF haven’t MS made a tool available for this… incredible bad.

  33. As with everyone else, I get same Internal Error using Outlook 2007.

  34. I get the same error as well, hopeless, have to try something else, my file is only 146meg

  35. I’m so pissed off. Microsoft is not providing any tool for recovering emails from OST files.
    Bad..very bad…

  36. I have received an: Internal error (code=00000003)
    Message and nothing happened to my OST file, except, that I had a backup of it with PST extenstion, which is still an unacceptable format to Outlook 2007. The OST file comes from an Outlook 2003

  37. for those who haven’t figured it out. after converting the pst using the program and getting the error – use scanpst.exe (search on your computer for it : its a microsoft utility to fix corrupted psts) and see if that fixes your problems. worked for me.

  38. Hey morons this tool only works on Outlook 2002 and earlier a bloo bloo BLOO

  39. Thank you Kazia for tips, it works with Outlook2007 , after folowing your instructions i got the .pst .

  40. Kazia is the MAN!! Ran the util, then ran scanpst on the .pst and boom it works in Outlook 2007

  41. @Ryan and @HURR DURRR could you please post the solution Kazia shared with you

  42. Ook It worked on the pst file but when i try importing it into outlook2007 it says its not a valid personal folders file… anyone help on this??

  43. Hey got the same error BUT… If you are running with MS-OFFICE 2007 here is another way of getting your mail…
    Close Outlook, on Control Panel, open Mail, click e-mail accounts and select the default e-mail account in use, then click Data Files and Select again your Mailbox, Click Settings, Advanced, untick “Use Cached Exchange Mode” click apply and respond OK, Click OFFLINE FOLDER SETTINGS, Click Disable OFFLINE USE and say YES, Click again OFFLINE FOLDER FILE SETTINGS, Browse for your .OST file and Click OK, Tick “Use Cached Exchange Mode” and respond OK to all the pop up messanges and Close everything. Open Outlook as normal. Your mailbox will be .OST will be loaded then export the whole Mailbox to a .PST File… Revert the changes to the old settings. Open outlook again as normal, It shouldn’t be loading the .ost now. Then Click file open outlook data file. then u r done!!! Hope I helped…

  44. Hey Sekoz

    Ok I am so close but still not able to access it, i am not connecting to the exchange server at all at the moment,the server crashed and all that i am left with is this .ost file. upon doing all that you said above, it still requires me to connect to a exchange server before its able to open up outlook 2007… any way of getting around this?

    thanks for all help so far!!

  45. I tried Kazai ‘s approach… but when I tried to add this pst to outlook2007 it says its not a personal folders file… anyone help on this please??

  46. So what is the official solution for outlook 2007 OST files?

  47. Ross,

    Your approach worked perfectly for me on our SBS2003 domain! Many thanks!

    -Curt

  48. On newer versions of outlook ots2pst doesn’t work. in that case you can use a paid utility. there are quite a few available. one is from ontrack. and one is Nucleus Kernel OST to PST. A free demo is available at http://www.repairexchange.net/ or http://www.ontrack.com

  49. Hi,
    I have used other software tool that convert ost to pst format easily and without an error from kernel data recovery.

    Hope it will works for you.

    Thanks,

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