If you’re still having problems, try resetting your Windows Firewall settings back to how they were originally. Running the /resetnavpane command removes all customizations to the navigation pane. If the troubleshooter can't fix your issue, or if you'd like to fix it yourself, see the next section.

If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. None of the events or information was lost in the move to the new calendar.

If the problem doesn't occur after you restart Outlook, one of the add-ins is likely the cause of the problem. Restore the add-ins one at a time until the problem does occur to determine which add-in is causing the problem. Although add-ins can enhance your user experience, they can occasionally interfere or conflict with Outlook. Try to start Outlook without any add-ins running.

Repeat the process for all the add-ins that were selected earlier and wait until the Outlook crashing problem repeats. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost). The steps to access the repair tool vary depending on your operating system.

If it does, the problem is definitely in your antivirus software. In this case, you can either contact its vendor for assistance or simply choose another protection program. When you install Outlook, an Inbox repair tool (scanpst.exe) is also installed on your PC. The Inbox repair tool can resolve problems by scanning your Outlook data files, and repairing errors. To use the Inbox repair tool, exit Outlook, and then follow the steps in Repair Outlook Data Files (.pst and .ost). As your mailbox size increases, more resources are required to open each folder.

Moreover, you can make Outlook work much better and faster. Don’t forget to regularly take care of your Outlook and update it to keep it working its best. If you still have problems even after trying these solutions, it might be a good idea to ask for help from Microsoft Support or an IT expert.

If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. If you have Outlook in your startup folder, remove the shortcut from the startup folder. Sometimes outdated or over-protective anti-virus / anti-spam programs can conflict with Outlook or with one of your Outlook add-ins. As a result, the common Outlook startup issues anti-virus blocks the add-in and prevents Outlook from functioning properly.

It needs enough RAM, processing power, common Outlook startup issues and hard drive space to work properly. If your computer is running low on resources, Outlook will freeze up. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below.

If it does and Outlook starts working properly, then most likely the problem is with one of your add-ins, which leads us to the next step. The browser version isn’t impacted by local Outlook files or add-ins. When opening certain messages, Outlook might be loading content from the internet. This can result in delays or even a full Outlook freeze on slower connections. Outlook freezing or becoming unresponsive isn’t just frustrating—it can derail your entire day.

Take a look at the following instructions for smaller files that have been corrupted, or common Outlook startup issues large files you want to prevent from corrupting. Gmail has a positive reputation when it comes to spam filtering. Using them as your email provider in tandem with your email client means you can enable their anti-spam features, which are superior to Hotmail and Outlook. We can say that you will likely need to reinstall your software and reconfigure the firewall settings.

We have gone through many steps with Microsoft Support until they could help no further. We have tried to trouble shoot and done a system restore but there was no restore point common Outlook startup issues and a startup repair and nothing worked. When we performed a startup repair this is the message we received. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files.

If you close outlook(make sure its not in the system tray) then click on start and type Domain, then find Access work or school. You should see the Microsoft account, click on common Outlook startup issues it and disconnect it. I'm having an issue with one Outlook 365, the program open and get stuck at loading the user profile, any profiles. I decided to try and fix it by uninstalling and reinstalling. I also removed some old add-ins and an old, inactive account (but Outlook worked no problem with these for a long time).

These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. Try these troubleshooting steps in the order presented here, from simple common Outlook startup issues to more complicated. If you're trying to open Microsoft Outlook from your Start menu or a shortcut icon but it just won't launch, don't worry, there are a few things you can try to get it up and running again. Here are some common fixes that should work when Outlook doesn't open, whether you're using Windows or a Mac. With the help of these tips, you can fix the Outlook is Running Slow problem.