You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. Are you having trouble starting Outlook or receiving “Cannot start Microsoft Outlook. Cannot open the Outlook window” error messages? We can fix the problem for you, or you can use the troubleshooting steps we’re providing below to help resolve these startup issues. If your Outlook is working fine now, it means add-ins are the culprit. But it is important to identify the specific add-in that was causing trouble. To identify that, check the add-ins one at a time and restart Outlook.

The good news is that most “Outlook won’t open” errors can be resolved with a few proven troubleshooting steps. If the above Outlook not opening on Windows 10 steps, especially ScanPST.exe, fail to resolve the “Outlook won’t open” error, your Outlook data file is likely severely corrupted or extensively damaged. In such critical situations, a specialized and reliable professional tool like the Aryson Outlook PST Repair Tool becomes the best solution. Yes, you can often fix Outlook without reinstalling Office.

Moreover, the software works with all versions of Outlook like 2021, 2019, Outlook not opening on Windows 10 2016, 2013, 2010, 2007, etc. Remo Repair Outlook (PST) tool can repair all sorts of corruption issues in your PST files. Whether corruption is caused due to storing the PST file on a server or due to bad sectors on the hard disk, the reason doesn’t matter