Now, select from any of the given options, including Quick Repair and Online Repair. Outlook being a great platform, still encounters some glitches and errors like Outlook 365 not working on Windows 10. This error leads to less productivity, especially if Outlook 365 is your default email client. The only way to resolve this issue is to repair Outlook 365 in Windows 10.

Then, right-click a selected file and choose "Delete" (a trash can icon). You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can Fix Outlook Support often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. In Windows, Outlook not opening errors can disrupt email communication, which can negatively affect productivity and business operations.

Once you’ve used this app, launch your Outlook app, and it should work as expected. For Outlook not opening problems, you can use Kernel Outlook PST Repair to fix the corrupt PST file and import it to restore mailbox items. This innovative Outlook PST recovery software repairs large PST files without compromising their integrity. It is is an advanced tool that gives you the ability to fix all major errors in your Outlook data files. Besides, it allows you to save the repaired PST file in multiple formats, like HTML, RTF, PST, etc, and even to the cloud, Microsoft 365 destination. If your Outlook version is outdated, that may be why you can’t open it.

Our goal is to give you the answers to fix the most common issues Outlook users face. Bookmark this page so that whenever you come across an error like your Outlook calendar not syncing, or a corrupted file, you'll have a place to start troubleshooting. Below are some common send and receive errors that you may encounter while using Outlook. It occurs rapidly when you receive or send messages in MS Outlook, leading to a damaged Outlook profile or encrypting Outlook(OST and PST) files. The folders storing all of your mail might be struggling to run because of how large they are. You can set up auto archiving to smooth out some of this issue.

In some specific cases, we observed that the problem no longer stayed after deleting the Outlook App Data folder. Thus, you can try deleting the Outlook App Data folder and check whether Outlook functions in your case