Many users use Outlook as their preferred email client, but sometimes some errors can occur in Outlook. Outlook the set of folders cannot be opened is one such error and prevents you from starting Outlook. Even if this is a bad bug, you should fix it with one of the following solutions.
In the Mail, Profiles window, click the Add button and enter the name of your new Outlook profile. Click OK to save changes. Now select Auto Account Setup or Manual Setup and follow the on-screen instructions to complete the operation. After creating a new Outlook account, the issue should be resolved, and Outlook will work smoothly. Few users claim that you don’t need to create a new profile from the messaging area. Instead, all you have to perform is delete all shapes, start Outlook, and you’ll be prompted to create a new profile.
If you have multiple accounts, you can delete them all and add them one by one until you find the one causing the problem.
Use taskbar shortcut to start Outlook
Many users tend to plug most apps into their taskbar to get them started quickly. According to users, the folders cannot be opened Error message just by creating Outlook via taskbar shortcut. To do this, follow these steps:
- Make sure Outlook is pinned to your taskbar. If not, find the Outlook shortcut and drag it to the taskbar.
- Locate the Outlook shortcut on your taskbar and right-click it. Select a new email message or Outlook 2016 from the menu.
- Outlook should then start without problems or error messages. Note that this is just a workaround, so you’ll have to repeat this solution every time you want to start Outlook.
Make sure to use a unique separate password for your Outlook.
The set of folders cannot be opened. The error appears when you use a two-step scan for your Gmail account. Two-step scanning is one of the best ways to protect your email account from unauthorized access, but sometimes problems can arise. If you have this problem in Outlook, use a separate password to see if that fixes the problem.
Sign out of the account of iCloud
- Make sure to completely close Outlook.
- Now launch iCloud. You can do this by opening the just Start Menu and entering iCloud. Select the iCloud Desktop app from the list of results.
- When iCloud opens, click Logout.
- You will be asked to keep your contacts, calendar, and tasks. Select the Remove from Computer option.
- After deleting your contacts, wait a few minutes for the changes to take effect.
- Sign in to iCloud again.
- Once connected, select the option to sync mail, contacts, calendars, and tasks.
- After that, Outlook should be restarted, and you won’t have any issues with it.
iCloud has issues with Outlook that may cause the group of folders cannot be opened error message to appear. Users say that you need to reinstall iCloud completely to fix this problem.
- Open your Outlook and go to File > Account Settings > Account Settings > Account Settings > Data Files.
- Locate the iCloud file and click Remove. You can easily recognize the iCloud file by the .aplzod extension.
- Close Outlook. Now open the iCloud Control Panel and turn off Mail and Tasks with your Outlook options tab.
- Download and install the latest version of your iCloud. During installation, the Repair option must be selected. After reinstalling iCloud, restart your PC.
- Once your PC restarts, start the iCloud Control Panel and select Mail, Contacts, Calendars, and Tasks with Outlook, and start the synchronization process.
- Then restart Outlook and check if the error message still appears. Few users claim that you don’t need to reinstall iCloud to fix this problem. You have to repair your iCloud installation to fix this error.
Do not install Exchange server cumulative update
Multiple Users Reported Folders Cannot Be Opened Error Message After Installing Exchange Server Cumulative Update. If you have this problem, remove this update and check if it fixes it.
Make sure to install the 64-bit version of Office.
According to users, the set of folders that cannot be opened can appear if you use a 32-bit version of Microsoft Office. On the other hand, if you are using a 64-version of Windows, we strongly recommend reinstalling Office and installing the 64-bit version instead.
Remove and re-add users from delegates
This error message can sometimes occur when using a shared mailbox. Users suggest removing users from representatives or adding them again to the permission level to fix the issue. After that, you have to restart Outlook, and the problem should be solved entirely.