There are a number of possible reasons for Outlook to behave this way Such as you don’t have installed the latest Windows/Office Updates on your PC, and Outlook is in use by another process. Also, the program starts freezing, not responding if it’s loading external content such as images in an email message, previously installed add-in is interfering with Outlook. Your mailboxes are too large,  Due to some reason Outlook data files have become corrupted or damaged, Your user profile has become corrupted and more. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.

Fix MS Outlook not responding 

If you are experiencing Outlook not responding while send receive emails, Suddenly outlook closes with an error message “Microsoft Outlook has stopped working” Here are some working solutions you may apply that work all Microsoft editions MS office 2019, 2016, 2013, 2010, 2007 running Windows 10, 8.1 and 7 Computers.

1 Fix MS Outlook not responding 1.1 Start Outlook in Safe Mode1.2 Remove the add-ins1.3 Stop Loading External Content1.4 Install the latest Windows and Outlook updates1.5 Repair Microsoft Office suite1.6 Repair your Outlook data files (.pst file)1.7 Create a New Outlook User Profile

Start Outlook in Safe Mode

Whenever you notice Outlook not responding, Freezes while open, send /receives emails. The First step you have to do is “start outlook in safe mode”. Outlook safe mode starts without extensions or custom toolbar settings and will disable Reading Pane because those areas of the program mentioned above that are disabled in this “mode” tend to be common sources of problems. Once Outlook starts, you can then investigate those parts of the program to see what’s preventing it from opening normally. (Via lifewire)

To Start Outlook in safe mode: For Windows 10 users: Click “Start” > “Search” > Type: Outlook.exe /safe and hit Enter; For Windows 8 users: Open “Apps” menu > Select “Run” > Type: Outlook /safe and then click OK; For Windows 7 users: Choose “Start” > Type: Outlook /safe in the Search programs and files box and then hit Enter.Close Outlook and then open it normally. After this, you shall be able to use Outlook 2016 in Windows 10 again.

Note:  If you get the error “Cannot open the Outlook window” while trying to start Outlook, the error usually indicates that your Folder Pane or Navigation Pane settings hold a corruption. In that case press Windows + R, type outlook.exe /resetnavpane, and ok check outlook started normally.

Remove the add-ins

If Outlook working properly in safe mode, when you exit safe mode and start outlook normally it’s started freezing or not responding Then Disable the outlook add-ins which may be causing outlook stop working or not responding. To Disable Outlook Add-ins

Stop Loading External Content

Sometimes Outlook became unresponsive due to external images, resource-heavy content, and more.  Stop Outlook from loading external content, by following the steps below and check if this may be helpful for you.

“Don’t download pictures automatically in HTML e-mail messages or RSS items”“Warn me before downloading content when editing, forwarding, or replying to e-mail”

Install the latest Windows and Outlook updates

Installing and Updating outlook help a number of users to fix their problem. If Windows or Outlook is outdated, it may affect using and send emails. So you can install the latest Windows and Outlook updates to fix the not responding issue: First install Windows update from:

Type: update in the Search box and click “Check for updates” or “Windows update” to open Windows Update.

To update Microsoft Office (Outlook)Run Outlook and go to File. Then move to Office Account.Navigate to Product Information. Select Update Options.Click on Enable Updates. Choose Update now.Wait for the process to finish. The “You’re up to date!” window will appear.Now the app is supposed to work well.

Repair Microsoft Office suite

Temporarily Disable Security software (Antivirus) If installed. And repair the Ms office suite that might be corrupt and causing issues while opening Word, excel or outlook. To repair the office suite, first, save and close your office documents.

Repair your Outlook data files (.pst file)

Still, the problem is not resolved, Outlook Freezes again and again at startup, and there is a chance of some error on the outlook data file (.pst). Let’s use the SCANPST.EXE to check and repair outlook data files. Note: before go ahead we strongly recommend to Backup the outlook data file (.pst) to another location.

Close your Outlook app.Navigate to the location C:\Program Files (or C:\Program Files (x86))\Microsoft Office\Office16.

Note: 

Here Locate SCANPST.EXE, and double-click on it to run the tool.Click Browse and locate the outlook.pst file You can find it here: File -> Account Settings -> Data Files.Click Start. Wait for the scan to finish.Click Repair if there are any errors found.Close Outlook, And restart windows. Check everything working properly.

Create a New Outlook User Profile

If everything fails to fix the issue, Out still not responding, crashes or stopped working at startup There is chance the current user profile causing the problem. And Creating a new profile may help you in getting rid of Outlook not responding problem To create a new profile in Outlook,

Open the Control panel, Programs, Then select User accounts and Choose Mail.The Mail items will open, Select Show Profiles.Locate your corrupt Outlook profile and click on Remove.Then click Add to create a new profile.Type a name for it into the Profile Name dialog box.Specify the profile details and click on Next to proceed.Enter your email address and password for the new profile, then follow on-screen instructions.And after configuring new user profile outlook should work normally without freezing.

Did these solutions help to fix Microsoft Outlook has stopped working? let us know on the comments below. Also read  

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