If you’re trying to open Microsoft Outlook from your Start menu or a shortcut icon and it just won’t launch, don’t worry, there are a few things you can try to get it working again. Here are some common solutions that should work if Outlook won’t open, whether you’re using Windows or a Mac.

Several issues can cause Outlook to not open properly or at all. Some common causes include:

There are other issues that can contribute as well. Perhaps you’ve added a new program to your computer that can’t handle Outlook, or your system has a virus. Regardless of the specific cause, there are several key solutions to try that can help.

Try the troubleshooting steps below in the order they are presented here, from easiest to most complicated.