Unable to open access or start Outlook PST File in Windows 11/10

Unable to open access or start Outlook PST File in Windows 11/10just freezes and refuses to respond to your request of accessing PST files, no matter how hard you try, you may see one of these warning messages flashing on your computer screen: “Microsoft Outlook has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.”

  • cannot start Microsoft Outlook.
  • The Outlook window cannot be opened.
  • The set of folders can’t be opened.
  • You do not have permission to access this file.
  • You do not have the permission required to access the file

Unable to open, access or start Outlook PST File

Related Post: Outlook Send/Receive error 0x800CCC13 in Windows 11/10

The problem with Windows 11/10 is that the permission changes for the PST file are not properly applied. This can be solved by changing the file permission. To access your PST file, first, select File Explorer from the Start button.

Browse to the file location as shown in the error. For example, if the error message says the file is in C:\Users\\Documents\Outlook Files, then browse to that folder.

When you’re done, right-click the file and choose Properties. In the Properties window, select the Security tab and hit the Edit button. In the Permissions window, select your user account and click the Allow box next to Full control.

Click OK in all dialog boxes to close them and gain Full Control permissions for the Administrators and System users. After you have completed all the steps, restart your computer. You should now be able to access the PST file or start Outlook, even if you have upgraded to Windows 10.

When you’re finished, restart your computer. If you can’t access the PST file, it’s probably because the file is corrupted. Once everything is finished, restart your computer. If you’re encountering problems with your PST file, Microsoft offers a free repair tool called Inbox Repair Tool. This tool can fix Outlook PST files with ease.

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