Top 6 Ways to Fix Cannot Expand Folder Error in Outlook

5. Create a New Outlook Profile

It is recommended that you follow point 4 above before moving on to create a new profile. Rename the folder that you can’t expand in Outlook. Right-click on the folder and select the Rename option to do so. Take a backup, if you must. If you have taken a backup on the server or in the cloud, delete the profile the below mentioned:

C:UsersUSERNAMEAppDataLocalMicrosoftOutloook

Of course, the Username above and the drive letter should be your corresponding user name and Windows installation drive. Reboot your computer.

Open Outlook and under the Files menu, click on Account Settings > Manage Profiles.

Click on Show Profiles.

Click on Add to begin creating a new profile.

You can now add email accounts to this newly created profile and check if you still get the Cannot expand folder error.

6. Repair PST and OST File

The Outlook email account data is stored in a .PST file if you are using IMAP or POP account. The same is stored in a .OST file if you are using Office 365 or Exchange account. Depending on the email account throwing the Cannot expand folder error in Outlook app, choose one method.

Repair OST File

Open Control Panel and go to User Account > Mail > Show Profiles. Select the profile you are having trouble with and click on Properties below. Now select Data Files in the pop-up that follows.

Select the email account data file and click on Open File Location.

A new window will open with a file name with .OST extension. Delete the file and reboot your computer. Launch Outlook and it will recreate the file automatically.

Repair PST File

The same steps won’t work for .PST file. Press Windows key+R to open the Run prompt. Enter the below file path in case of Office 2016, Office 2019, and Office 365.

C:Program Files (x86)Microsoft OfficerootOffice16

For Outlook 2013:

C:Program Files (x86)Microsoft OfficeOffice15

Double-click the SCANPST.EXE file, which will launch the Microsoft Outlook Inbox Repair experience. I wish there was a direct way of launching it.

Click on Browse on the pop-up that follows.

A new File Explorer window will open. You need to locate the .PST file here and when you find it, click on the Start button.

Select ‘Make a backup of scanned file before repairing’ option to create a backup in case something goes wrong.

Now click on Repair to begin the process.

Look Out

There are way too many versions of Outlook that Microsoft has released over the years. That makes troubleshooting a bit more difficult. However, we try our best to offer the best workable solutions. If you have found another way to solve the Cannot open folder error in the Outlook app, let us know in the comments below.

Next up:Using Microsoft Outlook on your smartphone? Here are 9 cool Outlook tips and tricks for Android and iOS.

Last updated on 29 Feb, 2020
Read NextTop 9 Outlook Email Tips and Tricks for iOS and AndroidAlso See#email #Microsoft

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Written By

Gaurav Bidasaria

Gaurav is a tech enthusiast who loves talking about new gadgets and innovations. He dropped out of CA because he found the work life boring and monotonous! He recently started working out but mostly, you will find him on the couch either Netflix-ing or gaming.

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