Cannot Open Windows Set Of Folders Cannot Be Opened

To resolve the problem, users may try different methods or tricks. Some are simple, while others are more complex and should be used when the situation is not straightforward.

Tips to Fix PST Error: Cannot Open Windows, Set of Folders Can't Be Opened

Users can start by checking that your anti-viruses and firewalls are working properly. These third-party applications can be temporarily disabled on your system. Then, run Outlook to resolve the issue.

1. Open Outlook in Safe ModeIn such a situation, the first thing a user should do is to try. Safe mode for Outlook applications. outlook information store could not be opened To do this, press Windows+R. Type Outlook /safe into the search box and press OK. Select the Outlook profile from the Choose Profile dialog box and click OK. If asked, provide user account credentials and click Accept. If the Outlook application runs in safe mode, users need to disable the add-ins by visiting File>Options>Add-ins. Click on the Go button and go to the Manage section. Next, select the desired Add-ins (or all) from the list, and then click on OK. Close Outlook and then restart it. Check if there are any errors.
2. Reset Outlook Navigation PaneResetting Outlook's navigation pane is a simple way to fix this problem. It holds Outlook database folders such as Contacts, Calendars, and Tasks. Resetting the navigation pane will remove all your custom settings. Close all running Outlook instances and related applications, then press Windows+R.Type outlook.exe/resetnavpane in the box that opens and hit OK.

   Start Outlook and check if it works.

   You can also go directly to the location

   To reset Outlook's navigation pane settings, delete directly the Outlook.xml from that location.

3. Disable compatibility mode to get rid of the PST error, you can run Outlook and then turn off compatibility mode. Right-click on the Outlook shortcut file or outlook.exe file located at the default location to do this.

   C:Program filesMicrosoft OfficerootOfficexx
   C:\Program Files (x86)\Microsoft Office\root\Officexx

   Select the Properties option. Next, click on the Compatibility tab. Clear the box that says Run this program in compatibility mode and then select the box that says Run this program as administrator. To apply the changes, click OK.

   Try again to open Outlook and see if you are successful.

   If you are still having trouble, disable Compatibility mode in Outlook.exe file properties. Visit to find the file location.

   Next, right-click the Outlook.exe file. Click on the Properties option. Next, switch to the Compatibility tab. Uncheck the box that says Run this program in Compatibility mode. Finally, click on OK.

4. Allowing Use Cached Exchange Mode for Exchange Users -To fix this issue, you can enable the "Use cached Exchange Mode" option in your system. Click on Control Panel and select Mail. Click on the Change button and select the Outlook account that is causing the error. Select Offline Settings and check the boxes "Use cached exchange mode", "Download shared files" and "Download folder favorites".This will allow you to use cached mode. Once Outlook is restarted, your problem might be solved.
5. Creating a new Outlook profile error could be caused by corruption in your Outlook profile. You can create a new Outlook profile at any time and feel the difference. Make the new Outlook profile these steps are how to do it:

   Click on Mail in the Control Panel. Select the Show Profiles option in the Mail setup wizard. Click on the Add button in the open wizard. Enter a name for your profile, then click on OK. Click on OK to create the new profile. Outlook should run smoothly if this profile is present. If not, the problem must be serious.

6. Repair Microsoft Office program -Outlook is part of Microsoft Office Suite. Users can manually repair or fix the Office program to see if there's a solution.

   To do this, go to your Control Panel. Click on the Programs and Features tab. Right-click the Microsoft Office program and choose the Change option. Next, click on the Quick Repair option. Follow the steps to repair the program online. Next, access Outlook.

   If the repair fails, there is an alternative option: reinstall Microsoft Office.

7. Repair Outlook database file -If all of the above fails, the problem is likely with Outlook PST file corruption. Microsoft offers an in-built utility that can fix corruption problems in Outlook data files. The Inbox Repair Tool(scanpst.exe is the name for the utility that can be found at the C Drive location within your system.

   The exact location of Outlook 2016 is:

   C:\Program Files (x86)\Microsoft Office\root\Office16

   You can run the tool from there. Browse your corrupt PST file, and click on the Start button to scan it.

   Click on Repair after the scan is complete. You can also make a backup of the PST file. Select the box Make a backup before you repair it. After the repair is complete, open Outlook to verify that the error has been fixed.

These solutions will help you fix the PST Error - Cannot Open Windows, Set of Folders Can't Be Opened Primarily. All manual solutions require technical knowledge, time, and effort from users. Unreliable ones can also cause data loss or other Outlook errors. If none of these solutions work, you can always use the professional Outlook PST repair tool to fix any type of Outlook database file. It promises complete data security and the required results, unlike the other solutions. This tool allows users to repair data quickly and make it available without any effort.