Hence, it is critical that you apply all Windows updates at the earliest without fail. In some cases, if you have failed to update your Windows operating system with the latest updates, it may impact the performance of the Outlook application. Try to disable the antivirus application you are running and check if Outlook starts to function normally. This is especially true if you have enabled email scanning by default.

The antivirus program present on your system may at times come in conflict with the normal functioning Outlook application. To resolve this issue you should apply all Windows updates to ensure you have the latest device drivers installed in your system.

In some cases, incompatible device drivers too can cause the Outlook application to experience conflicts and crash frequently. Consider the Probability of Incompatible Device Drivers Once you have removed the Office suite from your system, restart the computer and then reinstall the MS Office application again. If just attempting to repair the Office application fails to resolve the issue, you should try to first completely uninstall the MS Office application. Uninstall and Reinstall the MS Office Application

Outlook crashes when opening mail