TIP: Repairing Outlook .ost and .pst files

T

I’ve had issues recently with Outlook crashing when I shut it down. Initially I thought this was due to a rogue Outlook Addin (eg I’ve got Xobni, ClearContext, OutTwit and others installed). So I went through systematically getting rid of them. Put the problem persisted.

Finally I found the issue was to do with the actual .ost file being corrupted. The way I discovered this was by chance when trying to clear my Deleted items. Outlook gave me a message informing that the file was corrupt, and even better recommended using scanpst.exe to fix it.

I’d never heard of scanpst.exe but a quick Google check shows it has been around since the dark ages, and has been a regular in the Sys Admin’s toolbox for years.

If you are looking for it you can find it in your c:\Program Files\Microsoft Office\Office 12\ folder or equivalent.

Everything Outlook related needs to be closed down (eg Mobile Device Sync) and then you run it up. It’ll prompt for the ost file and away you go.

Since repairing my file I’ve had no further issues with Outlook.

Technorati Tags: scanpst.exe, Outlook, ost, pst, fix

81 comments

  • Thanks for the tip. A couple of things you probably already know about re Outlook2007 performance, but just in case…

    1. There is a <a href="http://anthonymilner.wordpress.com/2007/06/13/outlook-2007-responsiveness/">patch</a&gt; that fixes known performance issues with .ost .pst .

    2. If you’re running Google Desktop make sure you get the latest version. older version stop the Outlook process from shutting down which causes a delay on restart as the .ost is checked.

  • Thanks for the tip. A couple of things you probably already know about re Outlook2007 performance, but just in case…

    1. There is a <a href="http://anthonymilner.wordpress.com/2007/06/13/outlook-2007-responsiveness/">patch</a&gt; that fixes known performance issues with .ost .pst .

    2. If you’re running Google Desktop make sure you get the latest version. older version stop the Outlook process from shutting down which causes a delay on restart as the .ost is checked.

  • I’ve found scanpst to be a great tool in the past that works about 90% of the time…

    But I’ve had some real weird experiences with OST’s. A recent one was that whenever I’d select a folder in Outlook that was on my exchange mail account, I’d get a message to the effect of "There was an error reading the folder"… When I used a search folder, however, it was able to read the contents of the folder easily.

    Outlook’s scan tools couldn’t fix it so i took matters into my own hands. :)

    I backed up the entire mailbox, blew away the ost (in Vista – C:Users[User Name]AppDataLocalMicrosoftOutlookoutlook.ost) created a new one and restored from the backup. It took me about an hour, but it was well worth it.

  • I’ve found scanpst to be a great tool in the past that works about 90% of the time…

    But I’ve had some real weird experiences with OST’s. A recent one was that whenever I’d select a folder in Outlook that was on my exchange mail account, I’d get a message to the effect of "There was an error reading the folder"… When I used a search folder, however, it was able to read the contents of the folder easily.

    Outlook’s scan tools couldn’t fix it so i took matters into my own hands. :)

    I backed up the entire mailbox, blew away the ost (in Vista – C:\Users\[User Name]\AppData\Local\Microsoft\Outlook\outlook.ost) created a new one and restored from the backup. It took me about an hour, but it was well worth it.

  • Hi Ducas,

    Interesting. Theoretically you should be able to delete the local .ost file and Outlook will automatically rebuild it next time it connects to the Exchange server. The problem with this approach of course is that it can take ages if you have a huge .ost file since it has to resynch everything including sent mail, all your folders etc (and hence using scanpst is the preferred option).
    But if scanpst doesn’t work, and you don’t want to have to wait ages for a big re-sync then your backup suggestion is nice option.

    Cheers,
    Craig

  • Hi Ducas,

    Interesting. Theoretically you should be able to delete the local .ost file and Outlook will automatically rebuild it next time it connects to the Exchange server. The problem with this approach of course is that it can take ages if you have a huge .ost file since it has to resynch everything including sent mail, all your folders etc (and hence using scanpst is the preferred option).
    But if scanpst doesn’t work, and you don’t want to have to wait ages for a big re-sync then your backup suggestion is nice option.

    Cheers,
    Craig

  • I heard about not bad application-<a href="http://www.recoverytoolbox.com/ost_till_pst.html">ost to pst software</a>, convert from ost to pst software will convert *.ost to *.pst extension, that can be easily opened by any email client, compatible with Microsoft Outlook, recover your contacts, messages and calendars, is very easy to use even for beginners, we do not care about you computer skills, friendly graphic interface permits to perform all operations in several mouse clicks.

  • I heard about not bad application-<a href="http://www.recoverytoolbox.com/ost_till_pst.html">ost to pst software</a>, convert from ost to pst software will convert *.ost to *.pst extension, that can be easily opened by any email client, compatible with Microsoft Outlook, recover your contacts, messages and calendars, is very easy to use even for beginners, we do not care about you computer skills, friendly graphic interface permits to perform all operations in several mouse clicks.

  • There is also a scanost.exe in the same folder to synchronize OST to PST. And scanpst.exe can be used to repair OST files. But for big files and corrupt ones I use the Advanced Outlook Recovery and Advanced Exchange Recovery. They do the recovery more accurate and under your eyes : ) Here the link: http://www.datanumen.com/aor

  • Hi
    To add the list of third party utility; Although Paid but with unique features, which Converts OST file to its equivalent PST file created in MS Outlook 2010, 2007, 2003, 2002 (XP) and 2000. The software also provides compatibility with Windows 7, Vista, Server 2003, XP and 2000.
    http://www.convert-ost.net

  • scanpst is very helpful in built tool with outlook, but in such cases when ost file exceeds its file size or gets corrupted due to any reason, the only way to access the ost file content is to convert the .ost file into .pst file. Third party utilities are available to convert the ost file in to pst file. Many of them supports newest versions of MS Outlook i.e. MS Outlook 2010 and Windows 7. Here’s the link of such a utility that efficiently converts the ost file into pst file
    http://www.convert-ost.net

  • @ Convert OST to PST file

    I use the resource you provide, this is really a great tool to convert outlook ost file to pst file. The tool also converts my encrypted ost files to pst file. I got a related rich source of information at OST PST Converter

  • Many times the Outlook inbuily utilities fails to resolve the outlook ost file issues in all such cases one should try to convert ost to pst file manually by using third party ost to pst conversion tool. Stellar Phoenix Convert OST PST is such an advance ost to pst conversion tool that converts all the components of Outlook ost file to pst file and works as read only utility that means it does not alter the ost file components and also recovers the formatting of RTF & HTML messages.

  • When inbuilt scanost.exe utility fails to recover the corrupt or inaccessible ost file, try third party ost to pst converter tool to recover ost file. Such tools converts all ost file components to pst file and thus recovers all ost file components.

  • This is the best way to convert OST to PST and export OST file to PST file with PDS OST exporter software. Best OST converter to PST software has great technique to repair OST file and convert OST file into PST file within minutes. You can download OST to PST conversion solution from: http://www.osttopst.info

  • 100% Genuine & Reliable Solution to Completely Convert OST to PST
    Confidently repair Offline OST File Components & Strongly Convert OST file to Outlook PST file with a latest designed application. It is fully system compatible, Windows Based, support all Version of Outlook 2010, 2007, 2003, 2000 & 2002. 
    Find The Original Resource: http://www.pcvita.com/ost-converter.html

  • Hi Craig, 
    Thanks for sharing tips to repair PST and OST file, Both file has importance for email users who are using MS Outlook and Exchange application and you can see that users are also searching solution to repair these files. So Microsoft introduce a utility to repair both file SCANPST.EXE and SCANOST.EXE. It will help you to repair your corrupt file, problem still exist then you can go with third party branded company like Stellar Phoenix to resolve this issue.

  • Inbuilt Inbox Repair Utility i.e scanpst.exe and scanost.exe is able to resolve small corruptions but when the data file is severely corrupted you need a much powerful tool to repair the corrupted file. Kernel for Outlook PST Repair is the application you need to repair the corrupted Outlook PST file when scanpst.exe is not able to repair the corrupted PST file.

  • I always prefer to use default Inbox Repair Utility for rearing the corrupted OST file and if that utility does not work i prefer “Stellar OST to PST converter tool” .

  • Follow this microsoft link for repair manually  ost and pst:
    http://office.microsoft.com/en-001/outlook-help/repair-outlook-data-files-pst-and-ost-HA010075831.aspx
    If this link not help you then go for a third party software, will repair your emails with in few minutes. Search on Google you will get lots of results. From there one such utility is here, which is available as a free trial version.
    http://www.recoverfilesdata.com/outlook-pst-repair.html

  • hi!, I used Enstella http://www.ost-to-pst.osttopstconverter.com/ converter Software for smart OST email conversion process. I really got positive result with this tool. In my option this OST converter tool really a best and remarkable solution for corrupt OST file. Without creating any issues it convert OST file data into PST file data.
    Get more information about this software from here:-http://www.convert.osttopst.osttopstconverter.info/

  • Genuine
    and reliable solution to recover corrupt OST file…

    InFixi http://www.osttopstrecovery.org// Converter tool is the perfect way to get rid from all
    Exchange OST issues. By taking a help of this Exchange OST to PST Conversion
    tool you can effortlessly convert OST file to PST without editing in internal
    coding (TXT, RTF and HTML). It is a safe and secure way to get back your lost
    or corrupt OST database.
    For more information:- http://www.osttopstrecovery.org/

  • Take few steps to convert Outlook OST to
    PST via OST to PST converter software. With this admirable utility, OST
    users can perfectly migrate http://www.pdsosttopst.com in less time. To get rid of such OST
    corruption issues get this tool which provide instant outcome without any
    obstruction. Through this OST file converter software, OST users can read their
    OST file in PST, MSG, EML or in HTML format, in which they want.
     http://www.exportosttopst.org

  • Repairing Outlook OST and convert OST to PST on a flow by using OST conversion software. This Software provides simple and perfect conversion and recovery process. Get More Knowladge – http://www.ostconversion.convertost2pst.org/

  • Recover corrupt OST file
    and save OST to PST, EML, MSG and HTML format by using multi-featured OST file
    converter software. It works on all OST versions and extract large sized OST
    file to PST with high speed. It is a perfect tool make OST file readable and
    workable by transferring all data in Outlook PST file.
    http://www.convertosttopsts.com

  • Efficiently migrate OST to
    PST with the assistance of OST to PST conversion software. You can simply
    transfer data from damaged OST of all versions to Microsoft Outlook. It
    performs on corrupt OST file with great perfection and save OST in four variant
    formats PST, EML, MSG and HTML. Get this application and convert inaccessible
    OST to Outlook PST file.
    Read More http://www.osttopsts.org

  • In seconds, you can open OST file as PST, EML, MSG and HTML
    format easily. With the help of OST to PST converter software all users can
    speedily convert OST file to PST file in perfect manner. Use OST PST exporter
    application is the advance utility for exporting http://www.osttopsts.org data without any
    damages. Recover, convert and save OST email to PST, EML, MSG and HTML formats
    with whole OST email Meta data: to, cc, bcc, from, date, time and subject etc.
    https://launchpad.net/convertosttopst

  • Advance OST file converter program easily recover OST file and
    open OST into PST, EML, MSG and HTML formats. It recovers large sized OST file
    very smoothly and accordingly split it into 1GB to 5GB before saving OST as
    PST. OST to PST converter program is an efficient way to migrate OST to PST
    from all 5.0 to 2013 OST versions. With the superlative application you can
    carefully export OST to PST in exact format.

    Read More

    http://www.osttopsts.org

  • Keep
    faith on PDS OST to PST converter software because it is eligible to repair
    damaged Outlook OST file and convert OST to PST with complete assurance. This
    tool is really very effective and influential over inaccessible OST file and
    intensely migrate OST to PST. It extract password protected OST file very
    smoothly in PST file without any obstruction. It works for each OST version and
    save OST in various PST, EML, MSG and HTML formats. OST exporter tool spilt OST
    file and then restore Outlook OST to PST.

    Read More

    http://www.osttopsts.org

  • Recover
    lost emails from .OST file with related properties via Outlook OST email
    recovery software. Best OST file converter program is the best possible way to
    regain OST file data with accessible PST file. This is the most effective resolution
    to fight against OST corruption errors and to fix OST file. It view OST file
    with four selective formats PST, EML, MSG and HTML. Advance OST extractor tool
    is the simple way to re-access corrupt OST and save OST as PST.

    http://www.osttopsts.org/

  • Superb OST recovery tool excellently repair OST and transfer data from
    offline OST to Outlook PST. With the great performance of Advance OST converter
    tool smartly convert OST to PST, EML, MSG and HTML formats. It is really good
    to shift OST into PST with outstanding OST extractor program. Split OST into
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    mailbox to PST with all attachments

    http://www.ost2010topst.com

  • Advance OST to PST file converter program smoothly transfer OST to PST
    from each OST version. Without wasting much time it perfectly save OST file as
    PST, HTML, MSG and HTML formats. Spilt OST during conversion into Outlook PST
    file. Without wasting valuable time it perfectly fix OST file with exact format
    of TXT, RTF and HTML. It swiftly migrate OST to PST with each item of OST file
    and enables to read data with PST file
    http://www.pdsosttopst.com

  • There is
    an one another-way of  Repairing
    Outlook .PST files here name “SysTools Outlook Recovery Software”. With this,
    you can able to repair deleted/lost data of Outlook and regain all contacts in
    proficient manner.

  • OST to PST converter software complete recovers OST mailbox to repair OST file to PST file and convert OST to PST, EML & MSG formats with deep scanning into MS Outlook.

    Visit us : http://www.convertostpst.net/

  • OST Recovery software
    from a well-known vendor can be all that you need in such a critical situation.
    The benefits from this wonderful OST recovery tool are too numerous to count
    and are not just limited to recovering your crucial data from these OST files.
    http://www.ostpst.com/

  • Tool for 100% safe and secure OST Repairing process

    Granted and honorable Outlook OST repair tool now is present at Enstella System. With this updated Exchange OST to PST recovery tool user can honestly recover OST emails with metadata-to, bcc, cc, subject etc. By getting this highly effective tool gives you on more option after completing repairing process that it will allow you to do multiple conversion of recovered OST file into PST, EML, MSG and HTML format.

  • For repairing
    .OST file by using excellent working OST recovery software. This application
    works in each OST version and let users to read their significant data. It’s
    good to use this powerful OST to PST converter tool to fix OST corruption
    errors and convert data to PST, EML, MSG and HTML. Advance OST extractor tool
    efficiently extract data from OST file to Outlook PST against any changes in
    TXT, RTF and HTML formats. It is simple to recover OST file and transfer OST to
    PST file with the assistance of OST export to PST utility.

    http://www.convertosttopst.osttopstprogram.com/
    https://angel.co/ost-to-pst-converter-to-convert-ost-pst

  • OST exporter
    program is a brilliant solution to make OST file readable and convert OST to
    PST, EML, MSG and HTML. Advance OST to PST converter software works in all OST
    versions and save OST to PST in exact format. With the help of this stunning
    tool users can effortlessly migrate OST to PST, EML, MSG and HTML with great
    excellence. Microsoft OST export to PST utility is efficient to convert Outlook
    2013 OST file to PST without any interruption. OST file converter software
    takes few seconds to retrieve data from inaccessible OST file to PST.
    http://www.osttopsts.org

  • Use OST to
    PST exporter program smartly recover OST file and export OST to PST Outlook. With
    this application users can easily recover OST file and convert OST to PST
    without any obstruction. It’s better to use this superb OST export to PST
    utility which works over all versions of OST file and save OST as PST, EML, MSG
    and HTML. OST file converter program is an exquisite key to open OST file to
    PST Outlook completely. It split OST file and export data from OST file PST.
    http://www.osttopsts.org

  • It is true that Microsoft has not yet provided Ms outlook ost to pst converter tool. But it is not a very big matter. As you know Microsoft software application are very flexible. It is great feature of all Microsoft application. You can easily http://www.recoverdatatools.com/ost-to-pst-converter-software.html file format using some third party application. For more information on ost to pst conversion visit Microsoft official solution center:-
    http://social.msdn.microsoft.com/Forums/en/vsto/thread/82068a70-841a-420f-a361-c6d545194f7d
    for third party application Search on http://goo.gl/2ZQHqG

  • OST recovery tool is the best tool to recover
    OST file to PST file smartly. It helps you to repair OST file data and migrate
    OST to PST file quickly. Get this best OST converter to PST software for
    recovering OST file and converting OST to PST data with whole OST file folders.

    Get More Details Here,

    http://www.exportosttopst.org/

  • OST file converter software
    successfully recover OST file and convert OST file to PST file nicely. Without
    any harm you can recover Offline OST emails and migrate OST to PST smartly. It
    superbly repair corrupt OST file data and shift OST to PST with whole OST file
    folders.
    Read More,
    http://www.exportosttopst.org/

  • Advance
    OST to PST converter software effective and perfect method to instantly restore
    corrupt OST file along with all folders: Inbox, Outbox, Sent Items, Journals,
    Tasks, calendars, notes etc.This
    software has perfect ability to make your data accessible after corruption.
    Without any mistake just re-build your OST file data into various formats for
    re-use. 
    Read more:
    http://www.osttopstconversion.restoreosttopst.com/

  • OST file is the short form of Offline Storage Table it is use for maintaining data items. Some times OST file got corrupt and user need to repair their OST file instantly. Here we gives you that OST converter solution that nicely recover and convert OST file into PST, EML, MSG & HTML format.
    Visit Here for More Details, http://mail2web.com/plugins/Addons/Outlook/Email-Management/OST-To-PST-Converter-Free-Download_1926.html

  • To move your OST file PST file, you should use OST To PST Email Converter Tool by Recover Data. This software is responsible for recovering and repairing orphaned and lost .ost files and convert it into your .pst file format. Demo version are available on our official website :-

    http://www.osttopstconverter-tool.com/

  • Recovery of orphaned OST file now becomes too easy with the help of Enstella Outlook 2013 OST to PST Recovery software. With the product user can quickly access Outlook OST emails, contacts, tasks, notes, calendars etc. It will takes least time to convert recovered data into PST, EML, MSG and HTML

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