As we have explained, 11 techniques to fix Outlook are having trouble starting, how about starting with essentials only. As manual approaches have no assurance and also possibility of data loss. So, we recommend you to opt Expert Recommended Approach as it is specially known for faster results and no risk of losing any data. If it is not solved by performing the given solutions then your OST files get corrupted. In this situation, we recommend you to opt BitRecover OST to PST Fix Outlook Support Converter as this software can easily convert individual or batch OST files. It also helps to restore and convert damaged, corrupted, dismounted and oversize OST files without facing any limitations.

If Outlook is configured to connect to the Exchange mailbox in Online mode, an .ost file is not used. To adjust the number of days of data that are synced for shared folders, add the following registry values. You can limit the synchronization window that’s used for calendar folders to reduce the number of items that are stored locally in your calendar folders.

If it were me, I’d run either Process Explorer or Process Hacker and check the CPU levels while watching the person work for a few minutes. My guess is it’s got some kind of real time updating going on that’s hogging Outlook’s little slice of processor. Ifso facto, you can start looking for options that allow for this sort of thing and turn them off until it stops. If yes, then don’t worry, we’re here to fix it with effective solutions. Sometimes outdated or over-protective anti-virus / anti-spam programs can conflict with Outlook or with one of your Outlook add-ins.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 anti-virus blocks the add-in and prevents Outlook from functioning properly.

We are aware that some users may not be able to receive email from Gmail accounts. If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. This fix will also lead to a reduction in the total number of contacts on your contact list.

Read how to Add your Outlook.com account to another mail app. Add an Outlook.com alias to your account and send email to Gmail users using that alias. For more information, go to Add or remove an email alias in Outlook.com.

You may notice that All, Unread , Mentioned and other sort and filtering options, such as By date, and Newest are missing in Outlook above your email list. Please install the Windows 10 Fall Creators Update to fix this issue. Outlook 2016 freezes when you try to preview an Excel file that's attached to an email. After updating Office, you may experience a brief flashing window every hour, which triggers the OfficeBackgroundHandlerRegistration task to start Fix Outlook Support running. For more information about when builds are available for their respective channels, go to Update history for Microsoft 365.

Starting Outlook in Safe Mode will prevent some or all add-ins from Fix Outlook Support being loaded, prevents several settings files from being loaded and turns off the Reading Pane. 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).

Follow the prompts to complete the installation process. Find the Microsoft 365 app and right-click on it to see the available options. You will see two options – Change and Uninstall. A vast community of Microsoft Office365 users that are working together to support the Fix Outlook Support product and others. Select faulty or incorrect add-ins and click Remove.

If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. The fact of the matter is, Outlook doesn't always cooperate with your computer other applications. If you're tired of different bugs slowing things down or dealing with corrupted files, we are happy to show you how Mailbird can give you a better experience. The bad news is that the ScanPST.exe program doesn't work for severely corrupted files. You'll need to acquire a recovery tool designed for bigger jobs.

Some of these accounts still exist as legacies, but it's confusing to sort through what is being phased out and what will remain available. Users feel the platform is not designed intuitively, and there have been a lot of changes to keep up with. To check if Outlook is not loading for everyone you can review the Fix Outlook Support Microsoft Outlook twitter page, or check at a site like downdetector.com or isitdownrightnow.com. The first rule of Outlook troubleshooting is to eliminate the most obvious suspects.

If Outlook works fine now, you know one of those add-ins was the problem. Next, you can go back and turn them on one at a time. So, it will be helpful to find out which one caused the issue. In short, even small things can make Outlook stop working. But the good part is, you can fix most of these problems with simple steps.