Windows 365 Outlook

by



If you're the Microsoft 365 admin of an Office for business plan, users in your organization can only install Office using the steps in this topic as long as your plan includes the desktop version of Office, and you've assigned the user a license and given them permission to install Office (Manage software download settings in Microsoft 365). Hello, I recently upgraded to Microsoft Office 365. I have an environment which includes dual monitors. On previous versions of Outlook, I had my main Outlook window with the Inbox, etc 'anchored' to. Side By Side Mail and Calendar View in Outlook. To display a quick view of your calendar and appointments on the right side of the Home screen: Click on the View Tab, then in the layout section on the ribbon, click on the To-Do Bar and choose Calendar. A Microsoft 365 subscription includes premium Outlook features like an ad-free interface, custom domains, enhanced security, the full desktop version of Office apps.

-->

Introduction

This article describes how to troubleshoot the following kinds of issues in Microsoft Outlook when it's used together with Office 365:

  • Outlook stops responding (hangs).
  • Outlook crashes even though you aren't actively using it.
  • Outlook crashes when you start it.
Windows 365 Outlook

Procedure

To help troubleshoot Outlook issues in an Office 365 environment, follow these steps.

Step 1: Investigate possible issues caused by add-ins

  1. Exit Outlook.

  2. Open a Run dialog box. Eba 551 service manual. To do this, use one of the following procedures, as appropriate to your version of Windows:

    • If you're running Windows 10, Windows 8.1, or Windows 8, press the Windows logo key+R.
    • If you're running Windows 7, click Start, type Run in the Search box, and then click Run.

  3. Type Outlook /safe, and then click OK.

  4. If the issue is fixed, click Options on the File menu, and then click Add-Ins.

  5. Select COM Add-ins, and then click Go.

  6. Click to clear all the check boxes in the list, and then click OK.

  7. Restart Outlook. If the issue doesn't occur, start adding the add-ins one at a time until the issue occurs.

Step 2: Repair Office

See All Results For This Question

  1. Open Control Panel, and then click Uninstall a program.
  2. In the list of installed programs, right-click the entry for your Office installation, and then click Change, and then click Online Repair.

Step 3: Run Outlook Diagnostics

  1. Run the Outlook won't start automated diagnostics to fix the issues.

    Note

    Click Run when you're prompted by your browser.

  2. If the tool doesn't resolve the issue, go to Windows or Look to start Microsoft Support and Recovery Assistant for Office 365 (SaRA).

  3. On the first screen, select Outlook, and then select Next.

  4. Select any of the following options, as appropriate, and then select Next:

    • Outlook keeps hanging or freezing
    • Outlook keeps crashing with a message 'Microsoft Outlook has stopped working'.

    SaRA runs some diagnostic checks, and returns possible solutions for you to use to try to fix Outlook connectivity issues.

Step 4: Create a new Outlook profile

Note

If you ran SaRA in Step 3, and you created a new profile, you can skip all of Step 4.

  1. Open Control Panel, and then click Mail.

  2. Click Show Profiles.

  3. Select the profile that you want to remove, and then click Remove.

    Important

    Removing the profile also removes associated data files. If you're not sure whether the data files are backed up or stored on a server, do not remove the profile. Instead, go to step 4.

  4. Click Add.

  5. In the Profile Name box, type a name for the new profile.

  6. Specify the user name, the primary SMTP address, and the password. Then, click Next.

  7. You may receive the following message:

    Allow this website to configure alias@domain server settings? In this message, click to select the Don't ask me about this website again check box, and then click Allow.

  8. When you're prompted, enter your logon credentials, and then click OK.

  9. When Setup is finished, click Finish.

Step 5: Run SaRA Advanced Diagnostics before you contact Support

This step creates detailed information about your Outlook configuration and provides solutions for any known issues that are detected. It also gives you the option to upload your results to Microsoft so that a Support engineer can review them before you make a Support call.

  1. Click Outlook Advanced Diagnostics.
  2. Click Run when you are prompted by your browser.

More information

For more info about command-line switches that are used together with Outlook, go to Command-line switches for Microsoft Office products.

Still need help? Go to Microsoft Community.

-->

Symptoms

When you try to create an Outlook profile or connect to a Microsoft Office 365 mailbox, you're continually prompted for credentials while the client displays a 'trying to connect..' message. If you cancel the credentials prompt, you receive the following error message:

The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.

Cause

This issue can occur if the Logon network security setting on the Security tab of the Microsoft Exchange dialog box is set to a value other than Anonymous Authentication.

Resolution

Note

Microsoft Outlook 2016 and some recent builds of Outlook 2013 are not affected by this issue. Those versions have been updated to prevent the problem that is described in the 'Symptoms' section. These versions have the Logon network security setting disabled or removed from the Microsoft Exchange email account settings.

For newer versions of Outlook

You may be an Office 365 customer who is experiencing the error that is described in the 'Symptoms' section when you try to connect to an Exchange Online mailbox. You may also already be running newer versions of Outlook 2013 or Outlook 2016. If both conditions are true,it is highly recommended that you use the Outlook keeps asking for my password diagnostic to troubleshoot issues in which Outlook continually prompts for a password.

This diagnostic does automated checks and returns possible solutions for you to use to try to fix any detected issues.

Microsoft Office 365 - Outlook - Dual Monitors - Microsoft ..

If you are connecting to an Exchange On-Premises mailbox, see the following articles for additional troubleshooting:

Additionally, you can view the following forum thread for common causes:

For affected versions of Outlook

If you have an older version of Outlook, change the Logon network security setting to Anonymous Authentication to fix this issue. To do this, follow these steps:

  1. Exit Outlook.

  2. Open Control Panel, and then do one of the following:

    • In Windows 10, Windows 8.1, or Windows 7, click Start, type control panel in the search box, and then press Enter.
    • In Windows 8, swipe in from the right side to open the charms, tap or click Search, and then type control panel in the search box. Or, type control panel at the Start screen, and then tap or click Control Panel in the search results.

  3. In Control Panel, locate and double-click Mail.

  4. Click Show Profiles, select your Outlook profile, and then click Properties.

  5. Click E-mail Accounts.

  6. Select your email account, and then click Change.

  7. Full range drivers for open baffle design. In the Change Account dialog box, click More Settings.

  8. In the Microsoft Exchange dialog box, select the Security tab.

  9. On the Logon network security list, select Anonymous Authentication, and then click OK.

  10. Click Next, click Finish, and then click Close on the Account Settings dialog box.

  11. Click Close on the Mail Setup dialog box, and then click OK to close the Mail control panel.

More Information

To locate and view the registry setting for Anonymous Authentication in the Outlook profile, follow these steps.

Important

Outlook – Free Personal Email And Calendar From Microsoft

Modifying the Outlook profile by using the 'Profiles' registry path is not supported and may cause your Outlook profile to be in an unsupported state. Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you access it, back up the registry for restoration in case problems occur.

  1. Open the Registry Editor.

    • In Windows 10, Windows 8.1, or Windows 8, press the Windows logo key+R to open the Run dialog box, type regedit.exe, and then click OK.
    • In Windows 7, click Start, type regedit in the Start Search box, and then press Enter. If you're prompted for an administrator password or for confirmation, type the password, or click Allow.

  2. Locate the registry path appropriate for your version of Outlook:

    • For Outlook 2013

      HKEY_CURRENT_USERSoftwareMicrosoftOffice15.0OutlookProfiles

    • For Outlook 2010 and 2007

      HKEY_CURRENT_USERSoftwareMicrosoftWindows NTCurrentVersionWindows Messaging SubsystemProfiles

  3. Under this subkey, locate and expand the name of your Outlook profile.

  4. Under the profile, locate and expand the 9375CFF0413111d3B88A00104B2A6676 key.

  5. Under the 9375CFF0413111d3B88A00104B2A6676 key, you see a subkey for each account in your profile. Select the first subfolder (00000001), and then examine the data of the Account Name binary value by double-clicking the value. Repeat this process until you find the Account Name value that includes your SMTP address. For example, the Account Name value points to guidopica@contoso.com under the 00000003 subkey.

  6. Under the 0000000x subkey, locate the Service UID binary value. It represents a GUID (for example, c3 d1 9a 7b 80 1b c4 4a 96 0a e5 b6 3b f9 7c 7e).

  7. Locate the subfolder in your profile that matches the GUID value identified in step 6 (for example, c3d19a7b801bc44a960ae5b63bf97c7e).

  8. Under the subfolder that you found in step 7, examine the 01023d0d binary value. It represents a GUID (for example, 5f cf d5 f1 ba 5c 6f 45 b3 57 cc 5e 0d 16 94 58).

  9. Locate the subfolder in your profile that matches the GUID value identified in step 8 (for example, 5fcfd5f1ba5c6f45b357cc5e0d169458).

  10. Under the subkey found in step 9, examine the value of the 00036619 binary value. This value determines whether Outlook is using Anonymous Authentication.

    Binary: 00036619

    Data: 01 f0 00 80Anonymous Authentication

    Any other value represents an authentication method other than Anonymous.