After updating Office, you may experience a brief flashing window every hour, which triggers the OfficeBackgroundHandlerRegistration task to start running. In this case, sign in to the Microsoft 365 portal by using your administrator credentials, and then select service health to determine whether other customers are experiencing the same issue. If other customers are experiencing the issue, the issue should end when the service-interrupting event is resolved. If you’d like to share any feedback about this article, please let us know.

Email problems can disrupt your workflow.This guide will help you fix common Outlook issues quickly. A lot of times, a user will click on something by accident and change their view and be unsure of how to get it back. Sometimes when a user tries to search in Outlook, it either returns incomplete results, or returns nothing at all, even if you can see the email normally. Most times, this is caused by a corrupted search index, which you can rebuild. Keep in mind this does take a while, and it’s usually best done after the user has left for the day. Sometimes you’ll open Outlook and then for no apparent reason, it will freeze or shut itself down.

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. In this window you can check the status, the number of failed requests (under Req/Fail), and which mailbox is experiencing the issue. Outlook email accounts are provided to employees, students, alumni, retirees, and for generic accounts.

How to Close Unresponsive Outlook on WindowsOpen Task Manager: Right-click on the taskbar and select "Task Manager" or use the Ctrl+Shift+Esc shortcut.Locate Outlook Process: In the Processes tab, find the "Outlook" process.End the Task: Right-click on the "Outlook" process and select "End Task."More items...

You can start Outlook in safe mode, disable your Fix Outlook official help add-ins, and then try to open Outlook normally. If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. Note that you can quickly tell how your mail is currently sorted, by the presence of a small triangle on the field headers.

Outlook stuck at loading a profileRight click on any space of the Taskbar and select Task Manager.Under the Processes tab, locate all Office processes.Select an Office process and then choose End task. Repeat this for each Office process listed.

Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall. Be aware that you may need your product key if you received one. If you need to update your email's POP or IMAP account settings, please go to POP and IMAP account settings for more information.

Use the classic Outlook for Windows connectivity troubleshooter to troubleshoot Outlook connectivity issues. If your mailbox is full, we won't be able to reply to your request. Check that you have not Fix Outlook official help accidentally blocked the Gmail domain when blocking one Gmail user. We will update this article as soon as we have more information on a fix.

Give Outlook a few minutes to finish the process and it should start to work again. 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).

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

Large cache is often the cause of corruption, reduce the risks by reducing the size of the cache. For more information about performing a clean boot, see How to perform a clean boot in Windows. For a list of antivirus software vendors, see Consumer antivirus software providers for Windows. Outlook stores certain data, such as email signatures and the spelling checker dictionary, in the AppData folder. If the network is performing slowly, Fix Outlook official help Outlook must wait for read and write operations to the AppData directory to finish.

A more general version that can also fix Office, Microsoft 365, and other Outlook problems can be found here. Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. We are aware that some users may not be able to receive email from Gmail accounts.