Windows 10: Outlook is using an old copy of your Outlook data file .ost. Exit Outlook, delete the file

Discus and support Outlook is using an old copy of your Outlook data file .ost. Exit Outlook, delete the file in Windows 10 Gaming to solve the problem; Windows 10, 21 H2 Japanese OSI just cloned the smaller Hard disk drive to larger one. I started the laptop and when I clicked on MS Outlook I got this... Discussion in 'Windows 10 Gaming' started by Ari94, Aug 17, 2022.

  1. Ari94 Win User

    Outlook is using an old copy of your Outlook data file .ost. Exit Outlook, delete the file


    Windows 10, 21 H2 Japanese OSI just cloned the smaller Hard disk drive to larger one. I started the laptop and when I clicked on MS Outlook I got this message Refer screen shotI do not know how to delete the file, though I click on OK and continue checking my email. What should I do?Any help suggestion or guidance will be much appreciated.PS: If in later days I replace the older Hard disk drive will that not open MS Outlook if I delete the data file now?Thank you very much.

    :)
     
    Ari94, Aug 17, 2022
    #1
  2. newtekie1 Win User

    Outlook PST File Problem

    That is exactly what I was going to suggest. Export everything to another PST file, delete the old(or rather move it out of the default folder) and replace it with the new PST file that you exported.
     
    newtekie1, Aug 17, 2022
    #2
  3. marcbkk Win User
    Outlook PST File Problem

    Thanks again everyone. I just did an export on the troubled PST file to create a new PST file from it and the file size went from 3.9GB down to 850MB. Then I installed the new PST file into Outlook that I just created and removed the old PST file from Outlook and all seems to be working fine so far. I think I am good now, but I will give it some time just to make sure there are no problems before I delete the old file. Thanks again.
     
    marcbkk, Aug 17, 2022
    #3
  4. Megahertz Win User

    Outlook is using an old copy of your Outlook data file .ost. Exit Outlook, delete the file

    Backup and restore Outlook ost data files

    Andre, it's not what I've been reading.
    I/m studying this for days and from Backup and Restore all Outlook data - HowTo-Outlook
    "Your other data (Contacts, Calendar, Tasks and Notes) are not stored on and synched with the IMAP mail server as the IMAP protocol only supports synching emails.
    • Outlook 2007 and Outlook 2010
      Your Contacts, Calendar, Tasks and Notes are stored inside a separate additional pst-file.
    • Outlook 2013, Outlook 2016, Outlook 2019, Outlook 2021, and Office 365
      Your Contacts, Calendar, Tasks and Notes are stored inside the same ost-file"

    The server only has emails
    The *.ost file has emails and Contacts, Calendar, Tasks and Notes.

    As *.ost files cant be loaded into a new Outlook installation, you have to save Contacts, Calendar, Tasks and Notes to a PST file to separate emails (on the *.ost) and contacts, Calendar, Tasks and Notes (on the *.pst)
    On the new computer you create the account, it will create the ost file (downloading emails from the server) and then you import the pst file with Contacts, Calendar, Tasks and Notes.

    Next Monday I will work on it and will have some answers.
     
    Megahertz, Aug 17, 2022
    #4
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Outlook is using an old copy of your Outlook data file .ost. Exit Outlook, delete the file

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