If your Outlook crashes when opening steps to fix Outlook not opening or on startup or even if Outlook stucks at Processing, you can fix it by opening Outlook in Safe Mode. To open Outlook in Safe Mode, follow the instructions below. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing.
Follow the six quick procedures given below to effectively resolve Outlook crashing while starting up. Find solutions to common problems or get help from a support agent. Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for you. The next screen is the preview of all the recovered Outlook items and this concludes the repair process of a PST file using Remo Repair Outlook [PST]. However, if this doesn’t help, proceed to the next step. If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem.
Once the PST file is repaired, you can import the repaired PST file into a new or existing Outlook profile to restore and access all mail items. In the Folder Pane, you might see a folder named Recovered Personal Folders that contains your default Outlook folders or a Lost and Found folder. Although the repair process might recreate some of the folders, they may be empty. The Lost and Found folder contains any folders and items recovered by the steps to fix Outlook not opening repair tool that Outlook can't place in their original structure. Moreover, this tool can quickly recover email messages, calendars, tasks and other data from corrupted PST files. It also offers a filter option