Outlook comes with an inbuilt repair tool called Scanpst.exe to repair your Outlook data files (.PST or. You can appropriately terminate the expected program by ending it via Task Manager, as described earlier. Therefore it is suggested to stop or end all the memory-intensive programs before operating Outlook on your machine. Due to this confinement, it sometimes hangs or freezes. Close all other memory-intensive programsĪs compared to other applications, Outlook is the most complicated and memory-intensive program. A conflict between Outlook and another program.Ĥ.Interference due to an antivirus program.Some Outlook data files are either broken or have become corrupt.Your mailbox has reached the maximum capacity.A newly installed add-in is interfering with Outlook (see below image).Microsoft Outlook is in use by some other process or a program.When Outlook is adding an attachment to a user’s mail.

The user hasn’t installed the latest updates.

Why Microsoft Outlook Stops Responding or Not Working? Let’s have a look at the list of reasons or causes for why MS Outlook Not Responding. According to Microsoft, these problems occur due to one or more of the afterward reasons. In this article, we will consider the causes and solutions to resolve these issues. Sometimes it is extremely frustrating for some users and can also affect organizations enormously. Therefore read it till the end to know the best effective solutions to fix this Outlook error. If your Outlook freezes or hangs, at some point while using it and showing up error messages like Microsoft Outlook stops responding, Outlook stuck at processing, Outlook not responding, or Outlook stops working” then this post is for you.

Outlook 2019 hangs on processing