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Step 3: Select ' Outlook Template ', click Save button. Step 4: Close the mail message and Click Tools Rules and Alerts. Note: The screen shot is fit for Outlook 2003 and 2007. It is also fit for Outlook 2010/2013/2016/2019 (with Classic Menu for Office installed). If you are using Outlook 2010/2013/2016/2019 and have not Classic Menu for. Outlook Add-in versions In case you are using the Office add-in and are not seeing the current version (or something seems broken, e.g. White screens), please try to clear your Internet Explorer / Microsoft Edge cache. Outlook on the web (previously called Exchange Web Connect, Outlook Web Access, and Outlook Web App) is a web business version of Microsoft Outlook, and is included in Office 365, Exchange Server, and Exchange Online. Outlook has replaced Microsoft's previous scheduling and email clients, Schedule+ and Exchange Client. If you mean the Beta version of Outlook.com there should be a slider switch in the upper right when logged into Outlook.com. I have the same issue. My account seems to have switched from classic view to Beta without my doing anything. I do not see any slider anywhere to revert to the classic view. After auto-updating Outlook to version 4.11.0, mail had stopped working. No new e-mails are delivered or shows that my Inbox is empty. Older version 4.9.0 still works properly. Is there any link to download the previous version? Or can i do a downgrade to the specified app?

Older versions of Outlook.com

Rohan Wiese ❘ August 6th, 2018 ❘ 0 Comments

The blog discussed on how to fix error “Outlook is using an old copy of your Outlook data file (.ost). Exit Outlook, delete the file, and restart Outlook”

It is quite frustrating situation when you encounter an error while accessing the Outlook as all your mailbox items will be inaccessible to you. One of the frequently occurring error is “Outlook is using an old copy of your Outlook data file (.ost). The error indicates that the Outlook OST file might get corrupted due to improper synchronization process. There might some other reasons also due to which OST files become inaccessible such as virus infection, operating system crash, improper up-gradation of Outlook application and others.The above error appears with a message:

“Outlook cannot open your default email folders. Outlook is using an old copy of OST. Exit Outlook, delete the .ost file and restart Outlook. Please delete your OST file and new one will be automatically created the next time you initiate a send/receive”

Workarounds to fix the error Outlook is using an Old Copy of your Outlook Data File

Download Old Version Of Outlook

OST or Offline storage Table files are located in C:Users<yourloginname>AppDataLocalMicrosoftOutlook.

The best way to troubleshoot the error is to delete old OST file. But, don’t forget to backup your OST file in the form of PST file, before its deletion for the simple reason that in case there is data loss, you can retrieve data in Outlook though the backed up PST file.

Also Read: Best Solution to Import or Export OST File into Outlook

Go through the below steps to delete the OST file:

Outlook OST file is a hidden file. So, first we have to unhide this file to delete it. After making the files unhide, you are able to view the hidden files. Now, follow below instructions.

1) Go to the Computer or File Explorer
2) Navigate to C:Users<your login name>AppDataLocalMicrosoftOutlook
3) Now, Delete the files with .ost extension
4) Ensure that you have not deleted any file with .pst extension.

Restart Outlook, the OST file will be recreated.

But, there might be a possibility that the error is not fixed. Check whether the error “Outlook is using an old copy of your Outlook data file (.ost)” still appears or not. If not, follow the below -mentioned steps to delete the OST file.

• Go to Control Panel and open the Mail item
• Click on show Profiles and select your Profile, followed by Properties
• Click on Email Accounts
• Select View or change existing e-mail accounts, and then click Next
• Now, Go to Microsoft Exchange Server Account and select Change
• A dialog box will appear with Mailbox server and Username; click on More Settings
• In Microsoft Exchange Server dialog box, click on Security tab
• Select Encrypt data between Microsoft Office Outlook and Microsoft Exchange Server check box, and then click OK

Old Version Of Outlook Closing

Once you complete these steps, the error message “Outlook is using an Old Copy of Your Outlook Data File (.OST). Exit Outlook Delete the File” should be fixed.

Also Read: Manually Open OST File into Outlook

How To Get Old Version Of Outlook

But, what if the error still appears?

If a copy of converted OST file in PST format was saved, the error “Outlook is using an Old Copy of Your Outlook Data File (.OST). Exit Outlook Delete the File” would have been resolved. OST files cannot be accessed on any other system but PST can be imported to any system having Outlook. So, we’ll have convert OST format to PST to import it to Outlook so that our mailbox content will be accessible.

Old Version Of Outlook For Android

In this case, We’ll have to use a third-party OST to PST converter. In my recommendation, OST to PST Converter Software will be the best bet.

How OST to PST Converter works?

Old Version Of Outlook Email

Follows the simple steps for conversion

• Runs Aryson OST to PST Converter Software
• Click on Open Menu then select your OST file
• Select scanning option – Standard, Advance & Deep Mode and choose the 32bit versions or 64bit versions then click on “OK”
  Click on Save menu to save your OST file into different file format
• Choose “PST” file option and click on “convert” button for the successful conversion from OST to PST format.
• Now import this PST file into Outlook and access all your mail items. Remember to delete previous OST file before importing PST into that Outlook.

Conclusion

Most of the organizations rely on Outlook and have a large no. of Outlook users. Any kind of disruption in the Outlook data can hinder the functionality of the organization. So, it is advisable that OST files should be saved into PST format at regular intervals to avoid the occurrence of error “Outlook is using an old copy of your Outlook data file (.ost).” However, if you stuck in such a scenario, you can rely on Aryson OST to PST Converter to fix such errors.

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