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:


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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The term spam pre-dates e-mail.

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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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    Save Outlook: Five Ways to Recover Email from Error 0x8004010F

    Email services with a bright design and many new features appear almost every day. However, none of them could replace Outlook or at least compete with it. You can only come to terms with this. The secret to the popularity of the service is that it is part of the Microsoft Office suite, intuitive and straightforward. Besides, only Outlook allows you to take full advantage of the many features of Microsoft Exchange Server.

    Of course, Outlook is not only mail but also a diary, calendar, notes, and messages. Almost all human life is stored in one encrypted file. Therefore, it’s not very good if, when you try to enter the mail client, such a message pops up: 0x8004010F: Outlook data file cannot be accessed.

    No panic! We will try to find out what happened to the mail. Most likely, it’s not too late to save it.

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 09 |

    Spoiler: I’m not particularly eager to look in the answers, but if someone is in a hurry, the Recovery Toolbox for Outlook which is very useful in such situations, saved me.

    Returning the Outlook File

    The appearance of the 0x8004010F error means that the Outlook file that stores all the mail is damaged or lost. Gone with the spring wind? It doesn’t matter what happened. You can quickly recover lost mailings if you use a server with IMAP protocol support (Exchange Server, Office365, Gmail,, and the like).

    How does it work? The server automatically saves a copy of the file stored on the hard disk; therefore, at any time, we can access the lost data. To do this, you need to abandon the local file that has stopped responding and create a new one using the unique Outlook tool.

    Very similar to syncing local data with the cloud, right? Specialized knowledge for recovery is not needed, and the process itself consists of six easy steps-further details.

    Recovering an Outlook Account from a Remote Server

    • Start Outlook.
    • Go to Account settings.
    • Select the account you want to recover.
    • Select the Change folder.
    • Click the New Outlook Data File.
    • Confirm the changes with OK.

    If everything went well, you would get access to the lost mail. Exhale and go to check the mailing list. If not, then with a nasty sound this window will pop up:

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 08 |

    This popup often happens. Try disabling any programs that could affect the recovery process and carry out the procedure from the very beginning. However, the chances of success tend to zero. Mail is not available on the remote server, which is possible, for example, if Outlook uses the POP3 protocol, and all mailings are stored in one local file.

    No need to worry. Even after recovery using the server failed, options remain. First, check the Windows settings; there is a chance that they cause the failure. You may not have permission to access the local Outlook file, and this will lead to an error. To configure access rights, do the following:

    1. Launch Windows Explorer.

    2. Select the desired PST file. If its location is unknown, you can find the file using the same explorer, for this, enter in the window: “*.pst” (without quotes).

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 01 |

    3. Right-click on the file.

    4. Go to Properties.

    5. Uncheck the box next to Read Only.

    6. Click on the Security tab.

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 02 |

    7. In the “Groups and Users” menu, you need to select the account under which you are logged in.

    8. Make sure that all permissions (except for Special Permissions) are checked.

    9. Confirm changes by clicking OK.

    Permissions configured, but file still unavailable? So, let’s move on. Unfortunately, there are not many options left. The only thing that remains after you tried to restore mail from the server and set the correct system settings is to restore from a backup or other backup mail, PC. Or you can try to repair the damaged file using special programs and services.

    Mail Recovery Using Microsoft Office Tools

    Please take care of backup in advance-restore mail and forget about the error with the code 0x8004010F: Outlook data file cannot be accessed for a long time. If there is no backup, then you need to look for a unique tool. The good news: one of the most popular PST file recovery software is already on your computer.

    We are talking about the Inbox Repair Tool, which comes with the office suite. The tool is easy to use and, importantly, completely free, you need to look for it here:

    • Outlook 2019/2016: C:Program Files (x86)Microsoft OfficerootOffice16
    • Outlook 2013: C:Program Files (x86)Microsoft OfficeOffice15
    • Outlook 2010: C:Program Files (x86)Microsoft OfficeOffice14

    Unfortunately, the free tool does not always work, but the Inbox Repair Tool does not take much time either. It makes sense first to try to solve the problem with its help. If it did not work out, we would look for other options, in any case, you need to return the email.

    Online Services

    The online recovery and conversion services for Outlook databases give good chances, but you have to pay for the pleasure. There are a large number of such sites, ones of the most popular:

    The whole process takes five minutes to lose:

    • Select a file on your hard drive
    • Enter your email
    • Enter the verification code correctly
    • Pay for the service in one of the ways offered by the site

    If everything is done correctly, and it could not be otherwise, you will receive a link to the corrected file. The cost of the service usually does not exceed ten dollars for one file up to 1 GB in size. The only question is security.

    If you are not satisfied that someone unknown will get access to your personal data-bank card numbers, passwords from social networks, family photos-it is better to choose a method that is not related to sending mail to a remote server. For example, install a particular program.

    Recovery Toolbox for Outlook

    A convenient and inexpensive tool, you can download it from the link: The program does not require connection with third-party sites. Therefore there are no privacy problems when using Recovery Toolbox for Outlook. It’s easy with which to work. The developers made sure that you can proceed immediately after installation. Before you begin, it is recommended that you backup an important file.

    In such a simple way, you not only protect yourself from surprises, but you can also check the system. If a Windows error pops up during the copy process, you must format or change the hard drive, and then reinstall the system. To not have a disaster again, in the future, do not forget to backup the operating system. The backup will save you nerves and improve digestion.

    Bug the error 0x8004010F: Outlook data file cannot be accessed

    Recovery Toolbox for Outlook performs well in recovering Outlook accounts after error 8004010F. What do we have to do:

    1. Download and install the tool from the official website:

    2. Run the installed program.

    3. Find the file we need on disk.

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 03 |

    4. Left-click on Recovery Mode.

    5. Select the folder with the Outlook files.

    6. Replace the damaged file with the corrected.

    Note! In the latest versions of Outlook, you can replace the file either by manually moving it to the Outlook folder or by using the program method, which needs to be done like this:

    1) Select the item File/Details

    2) Click Account Settings

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 05 |

    3) Select Data Files

    4) Select a damaged file from the list

    5) Click Open file location…

    Save Outlook: Five Ways to Recover Email from Error 0x8004010F 06 |

    That’s all. Next, we need to delete the old file, otherwise sooner or later, errors will pop up.


    Now it remains only to test the work of Outlook. If everything is done according to the instructions, error 0x8004010F: Outlook data file cannot be accessed will not bother you for a long time. Otherwise, reread the article and try to figure out what exactly was done wrong. I hope this little setback did not stop you halfway.

    Remember that you can always contact Recovery Toolbox for Outlook support. Experienced specialists will help you. Of course, only if you use the licensed version of the program or pay for the work of the online service.

    On this, I say goodbye to you and wish you good luck.


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    A large number of users have reported seeing the message You don’t have permission to create an entry in this folder when trying to change data inside their Microsoft Outlook software.

    The circumstances in which this happens are the following: two profiles using different Microsoft Outlook versions created two Microsoft Exchange Server accounts. A folder is created that can be seen by both users, but only one account has permissions to access it and change the information.

    This error is caused by Outlook not being able to delete the stored cache when switching between accounts on the same profile. Because the account without permission tried first to access the folder created earlier, that account has momentary ownership of the folder, so the user with permission will see the same message.

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    3. Uninstall and re-install Office 365

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    Create a Client User

    Requirements to Create a Client Creation Steps
    Create Client by adding to a folder Resend Welcome Email
    Guide for Clients Employees vs Clients Delete a User

    Requirements to create a Client User

    • An Employee user
    • The manage client users permission
    • Changing a client email address or deleting a client user from the system both require the manage employee users permission.

    Create a Client

    First, head to People > Manage Users Home or Browse Clients. Click Create Client.

    User-added image

    Enter your user’s email address, first name and last name. (Company is optional). If you wish to add additional users, click Add another. When adding multiple users at Step 1, those users must all be given the same permissions and folder access later in the creation process.

    By default, new client users are prompted to create a new password when they sign in to ShareFile for the first time. If you do not want your client to be able to set their own password, do not notify users they have been added to the account until after you have navigated to your user’s profile page and updated their Change Password permission.

    User-added image

    Next, you can assign folders to your user, as well as add the user to Distribution Groups. You may also copy folder permissions from an existing user to your new one – using Copy Folder Access will only copy folder permissions, not account permissions.

    User-added image

    Create a Client (Folder Access Menu)

    You can also create a new client user from the Add People to Folder menu. A client user is created if you add an individual to a folder that is not currently a member of your account.

    1. Click on the name of the folder where you would like to grant the new user access.
    2. Access the People on this Folder tab or folder access menu.
    3. Click the Add People to Folder button.
    4. Click Create New User to add a new client user to your account with access to this specific folder.
    5. The user’s email address, first name and last name are required. The user will be created as a Client User and added to the list of users in the pane on the left.
    6. Check the “Notify Added Users” option in the bottom right.
    7. Save changes. Your user will receive an email notification that they have been added to the folder and must activate their account.
    User-added image

    When adding a client user through Folder Access, your new client user receives the following email notification:

    User-added image

    For updating user permissions after they have been added to a folder, see Folder Permissions.

    Resend a Client Activation Link

    When a user is added to ShareFile, they are provided an activation link (by email or by a link generated and delivered by the creator). If the newly created user does not access that activation link within 30 days, a new activation link must be sent. When resending an activation link, the previous activation link is deactivated.

    To resend the Welcome Email containing the activation link:

    1. People > Resend Welcome Emails
    2. Enter your user’s email address or name to add them to the To field, or select them from the Address Book.
    3. Customize your email message as needed
    4. Click Send

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    Use Distribution Groups to consolidate users into functional groups for more efficient account management. This feature is useful for managing large groups of users with similar folder access needs.


    Managing Distribution Groups requires the create shared distribution groups and edit shared distribution groups permissions

    Distribution Groups and User Permissions

    • Members added to the Distribution Group will inherit the folder access permissions of the group.
    • Members removed from the Distribution Group will lose the folder access permissions given to that group.
    • Permissions given on a folder to a distribution group will apply to every member. This includes notifications about downloads and uploads.

    Create a Distribution Group

    1. Navigate to People > Distribution Group.
    1. Select New Group. The Create Distribution Group popup displays.
    1. Type in the group name you want to use. Click Yes or No for the option to Share this distribution group with all employees.
    2. Select the the Create Group button.
    3. On the Distribution Group page, you can add users with one of the following options:
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    • Access the Add From drop down menu and choose Add from Personal Address Book or Add from Shared Address Book
    • Access the Add From drop down menu and choose Add from Employee List
    • Access the Add From drop down menu and choose Add from Excel. A template spreadsheet will be provided to you. Please fill in this spreadsheet and follow the instructions provided in the web app.
    • Access the Add From drop down menu and choose Classic Bulk Add. You may enter users via email. Each entry should be on its own line. Entries should NOT be separated by commas. Entering first and last names for each entry is not required. To associate a first and last name with an entry, place the name in parentheses after the email address.

    Once you have saved our Distribution Group, you can return to the Distribution Groups menu to modify your group as needed.

    Sending or Receiving Files from a Distribution Group

    You can select a Distribution Group as the recipient of your message when sharing or requesting files. Distribution Groups can be accessed via the Address Book icon. When receiving an email sent to an entire Distribution Group, your recipient will only see his or her own email address in the recipient field. For security purposes, recipients cannot view other email addresses that may have been sent the file.

    Adding a Distribution Group to a Folder

    A distribution group may be added to a folder in much the same way an individual user would be. Folder permissions can be customized across the distribution group. When receiving notifications sent to an entire Distribution Group, your recipient will only see his or her own email address in the recipient field. For security purposes, recipients cannot view other email addresses that may have received the notification.

    Distribution Group FAQ

    How many users can I add to a Distribution Group?

    A distribution group can have a maximum of 2000 users.

    I added a user to a folder when they already had access through a Distribution Group. What permissions apply?

    The individual user’s access will override that of his/her group. Example: John Doe has Download permissions on a folder due to his membership in the Doe Distribution Group. You add John Doe to the folder manually, and grant him Upload permissions. He will have both Download and Upload permissions, even though his Distribution Group membership does not include Upload.

    Generate a Group Membership List

    To generate a membership list for your review, access People > Manage Users or Distribution Groups. Click on the group name to access it. Access the Generate Report drop-down menu and choose Export Group List. Once the list is generated, a spreadsheet will be downloaded to your local computer.

    Generate a Folder Access report

    A Folder Access report shows which folders and permissions the Distribution Group has access to. To generate a folder access report for your review, access People > Manage Users or Distribution Groups. Click on the group name to access it. Access the Generate Report drop-down menu and choose Folder Access. You may print this list for your records.


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