Cannot Open Windows Set Of Folders Can’t Be Opened

Outlook 2016 errors are common for many users. This error message means that Outlook 2016 cannot open the Outlook data file that contains all of the information. This is an unexpected MS Outlook error that prevents the program from starting. This article will explain how to fix this problem and the symptoms.

Outlook Error: Outlook 2016 Cannot Open the Set of Folders

Sometimes, when you click on the Outlook icon, an "hourglass" appears that hangs for a time and then throws an error: Could not start Microsoft Office Outlook.

Corrupted Navigation Pane Settings File 'profilename.xml" is the main reason for this problem. Profile-name is Outlook's name. It is easiest to determine if a file has been corrupted if its size is less than zero (0) KB. the set of folders cannot be opened outlook 2016 This error can be found in all versions of MS Outlook, 2003 through 2016, 2019. This error can also occur when Outlook is running in compatibility mode, or if someone uses a profile that was created in an older version of Microsoft Outlook.

If the Outlook data file (PST/OST) is deleted or damaged, this can lead to incorrect uninstallation or reinstallation. No matter the reason, the result is the same: Microsoft Outlook cannot be opened. The Outlook window cannot be opened. Outlook 2016/2013/2010/2007/2003/2002/2000 etc. error. This error may occur in different forms in Outlook depending on the version.

  • Outlooks 2007. "Cannot Open default E-mail Folders. The stored information could not be opened.
  • Outlook 2003 "Cannot open MS Office Outlook. Outlook window not opening The view cannot be loaded because of invalid XML.

How to fix Outlook 2016 error: The Set of Folders Could Not Be Opened

You should first check your network connection, and access to the Exchange server to determine if there are any network issues. If all is well, then you can proceed to the next steps.

Important Note: Outlook 2016 Repair Tool can fix corrupt Outlook PST files in MS Outlook 2016, 2019, and below. It can fix PST file problems and retrieve missing data items without causing data loss. It offers a 100% guarantee of data safety and integrity.

Technique 1: Using Scanpst.exe to Open Outlook

This error prompt is caused by Outlook PST corruption. Scanpst.exe is an in-built repair tool offered by Microsoft that can easily repair corrupted PST files. Keep in mind, however, that Scanpst.exe may not recognize the PST files. Follow these steps to fix the "The set of folders could not be opened in Outlook 2016" issue.

Please Note: The Scanpst.exe can be found in the following locations.

  • Outlook 2016/2019
  • In x64 Office - C:\Program Files \Microsoft Office\root\Office16
  • In x86 Office - C:\Program Files (x86)\Microsoft Office\root\Office16
  1. Close outlook.exe and any other PST-related tasks.
  2. Run the Scanpst.exe utility and click Browse to add corrupted PST files
  3. Default Location of PST: C:\Documents and Settings\%username%\Local Settings\Application Data\Microsoft\Outlook\
  4. Finally, click the Start button

Technique 2: Create A New Outlook Profile

  1. Open the Control Panel on your machine.
  2. Click here to go to User Accounts >> Mail
  3. Next, click the Show Profiles button to select your Outlook profile. Click on Remove
  4. Click the Add button in the Mail Profiles wizard to enter a name and description for your new Outlook profile. To apply the changes, click OK
  5. Follow the instructions to finish the procedure.

The issue will be fixed once you create a new Outlook account. Outlook will then work normally again.

Technique 3: Run Outlook in Safe Mode

  1. To open the Run wizard, hold the Windows key + R button simultaneously. Type outlook.exe/safe in the box and hit Enter.
  2. Next, you'll be asked to choose the profile that will allow you to log in. If there is only one profile, then it will be chosen by default. Click OK
  3. The outlook may be working fine now, but add-ins may be corrupted or conflicting. To confirm, disable add-ins and open the Outlook application.
  4. If the add-in is still working, then you can enable it sequentially to determine which one was causing Outlook problems.
  5. Click File >> Options >> Addins >> Manage >> To disable add-ins
  6. Next, check all data items in the Add-Ins list and click the OK button
  7. If MS Outlook still isn't working, press the 'Windows + R" keys and type appwiz.CPL before hitting the OK button.
  8. Locate and remove the following programs:

Technique 4: Enable Cached Exchange Mode

  1. Click Mail >> Data Files in the Control Panel
  2. Click on Settings to access your Account.
  3. Check all three options now: Use cached Exchange mode; Download shared folders, and Download public folder favorite.
  4. Close the browser and open Outlook.


This article will explain how to fix Outlook 2016's "The set of folders could not be opened Outlook 2016" error. It will also show you how to make Outlook work normally. Many Outlook errors can occur, such as Outlook PST File cannot be found. It is essential to solving the MS Outlook PST file problem for it to work properly. Users can now choose the best solution that suits their needs and preferences.

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