Blogs
on February 2, 2026
For more information, see Introduction to Outlook Data Files (.pst and .ost). You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook repair Outlook data file starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. If you are trapped in a similar situation that my Outlook is not opening, you may feel disturbed about the problem. In the following post, you will find out solutions for the common Outlook not opening problems bonus tips to prevent the problem from happening again.
After performing the method start Outlook again to check if the method has worked and eliminated the error. Now, that you know the reason for the Outlook Profile being stuck, it should be easier to choose the right methods to fix the issue. Sometimes, Outlook might not work if other Office-related processes are still running. You can end all office-related processes in task manager to ensure a fresh start. Corrupted Outlook files are a common cause related to Outlook. To rectify/repair it, Microsoft has provided an inbuilt utility called Scanpst.exe.
A more general version that can also fix Office, Microsoft 365, and other Outlook problems can be found here. Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. We are aware that some users may not be able to receive email from Gmail accounts.
Not something you want to take on lightly, but sometimes you have to. Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall. Be aware that you may need your product key if you received one.
One such issue is when you are stuck on loading your Outlook profile and the set of folders cannot be opened. It’s too frustrating because you can’t even use the app and find out what’s wrong with it. Are you experiencing profile loading issues in Outlook?
You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. Where outlook is repair Outlook data file installed there is an application called SCANPST.EXE. You can also try typing "run" in the search bar, and then enter outlook.exe /safe into the run bar.
I'm having an issue with one Outlook 365, the program open and get stuck at loading the user profile, any profiles. Microsoft Outlook is an excellent application with a wide range of features. With Outlook, you can access email, calendar, contacts, and more in repair Outlook data file a single app, making it user-friendly. Still, like other apps, Outlook also runs into issues sometimes.
Follow the steps below to disable Outlook’s compatibility mode. You may face issues in loading Outlook Profile if you lack Administrative privileges. Must open Outlook with the administrative privileges (Run as Admin). Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
To work around the issue, you will need to end all Office processes that are running and disable the presence features. Restart the Outlook application and check if the issue persists. repair Outlook data file Further, start the application again to check if the error has been fixed. If you are still experiencing issues after trying both of these solutions, contact the EIT Service Desk. The software provides options to split the resultant PST file.
Use the classic Outlook for Windows connectivity troubleshooter to troubleshoot Outlook connectivity issues. Post questions, follow discussions and share your knowledge in the Outlook.com Community. Switch your alias to an Outlook.com or Hotmail.com account.
Start Outlook in safe mode to fix "Processing" screenIn Windows 10, choose Start, type Outlook.exe /safe, and press Enter.In Windows 7, choose Start, and in the Search programs and files box, type Outlook /safe, and then press Enter.In Windows 8, on the Apps menu, choose Run, type Outlook /safe, and then choose OK.
The root cause was the deployment of an incorrect campaign data file, which led to false positive campaign detection. We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
This section introduces solutions that you can use when Outlook 2016 or Outlook 2013 is not opening. If none of the above steps repair Outlook data file work, the issue may be more complex or related to server-side problems that only Microsoft can resolve. Try these troubleshooting steps in the order presented here, from simple to more complicated.