Split Outlook Large PST files Quickly

Outlook Unable to Open Default Email Folders: What to do?

MS Outlook is one of the popular email-client application which are being used by large numbers of people all over the world. It enables you to perform normal email operations in an easy way. Using this email-client application you regularly send or receive hundreds of emails on regular basis. But sometimes it happens that Outlook unable to open default email folders due to which you are unable to access the emails and perform normal email operations.

It has been reported by numerous users that while working on MS Outlook at times they get encountered with situation when they are unable to access their account. Each time when users attempt to access the Outlook account they come across below error message:

"Unable to open your default email folders. Outlook could not start because a data file to send and receive mail could not be found. To add a data file such as a personal folder file double click the mail icon in the windows control panel"


After the occurrence of above error messages users are unable to access the Outlook account and hence not able to send or receive emails. There can be various reasons responsible for the occurrence of Outlook unable to open default email folders error message but the most common reasons are as follows:

  • Personal folder file have not been created
  • Email-client application unable to connect to the network server
  • Corruption of PST folder
  • If PST File size has exceeded the default file size limit.

Due to any of these reasons you face such types of problematic situations and not able to access your Outlook account. In order to resolve this problem first of all you need to check the Internet connection. If you found no problem in Internet connection then you need to check whether personal folder file has been created or not if it has not been created yet then you need to create it. In case if you have got damaged PST folder then you need to run Scanpst.exe or Inbox Repair Tool in order to repair the corruption.

Even if you are unable to fix Outlook unable to open default email folder error message then it is clear that your PST folder have been severely corrupted either due to corruption or bigger pst file in Outlook. Splitting the file or archiving the file here would certainly be a good option. You can do this easily with inbuilt tool called PST2gb.exe in Outlook. Or you can try downloading third party Split PST software to reduce the file size and thus fix the error efficiently.