Comprehensive Guide to Outlook Web Access Reinstall

By / March 16, 2023

Outlook Web Access (OWA) is a web browser-based version of Microsoft Outlook, meaning that it can be accessed from any computer with a web browser and internet connection.
OWA is a very useful feature for Outlook users, but unfortunately, some users reported that OWA isn’t working in Outlook.

  • If Outlook Web Access does not load, you should first check if Outlook is up and running.
  • If it doesn’t, you should troubleshoot Outlook on your PC and fix it.
  • You could also try installing Outlook from an official Microsoft installer.

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    Try to connect again

    1. In case if the issue occurs when you try to connect again, the next step is to try to reconnect to Outlook Web Access.
    2. First, open Outlook desktop app.
      First, open Outlook desktop app.
    3. Click on File and select Add Account.
    4. Select Internet Email and click OK.
    5. Select Manually configure server settings or additional server types and click Next.
    6. Enter outlook.office365.com in the Incoming mail server box.
      Enter outlook.office365.com in the Incoming mail server box.
    7. Enter smtp.office365.com in the Outgoing mail server box.
    8. Enter smtp.office365.com in the Outgoing server (SMTP) box.
    9. In the User Name box, enter your full email address.
    10. Enter outlook.office365.com in the User Name box.
      Enter outlook.office365.com in the User Name box.
    11. Enter outlook.office365.com in the password box.
    12. Select Connect.

    Reset the OWA cache

    1. • Launch Internet Explorer and go to the Tools menu.
      • Launch Internet Explorer and go to the Tools menu.
    2. Select Internet Options.
    3. Click the Delete, under Browsing History.
    4. Select Temporary Internet Files and Cookies.
    5. Under Check for newer versions of stored pages, select Delete all offline content.
      Under Check for newer versions of stored pages, select Delete all offline content.
    6. Click the OK button.
    7. Clear your Browser Cache
      • Launch Internet Explorer and go to the Tools menu.
    8. Select Internet Options.
    9. Click the General tab.
    10. Under the Browsing history section, select the Delete button.
      Under the Browsing history section, select the Delete button.
    11. Select the Temporary Internet Files option.
    12. Click the Delete button.
    13. Click the Delete, under Browsing History.
    14. Select the Cookies option.
      Select the Cookies option.
    15. Click the Delete button.

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  • 1. Download and install ASR Pro
  • 2. Run a scan to find and fix errors
  • 3. Reboot your computer for the changes to take effect

    • Reset the OWA application pool

    1. Open the Outlook Web App Manager
    2. Wait for OWA to restart
      Wait for OWA to restart
    3. Restart the IIS server
    4. Restart the OWA server
    5. Clear the Browser Cache and Temporary files

    Re-register the OWA application

    1. 1. Open Internet Explorer.
    2. 2. In the Address bar, type outlook.office365.com.
      2. In the Address bar, type outlook.office365.com.
    3. 3. In the Internet Explorer search box, type owa.
    4. 4. Click owa in the search results.
    5. 5. Select Uninstall.
    6. 6. Click Unregister.
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    Reset the IIS app pool

    1. Go to Search, type app pools, and open the app pool settings.
    2. Select the app pool for Outlook Web App.
    3. Click the Advanced button.
      Click the Advanced button.
    4. In the Advanced tab, click the Reset button under the Application Pool section.
    5. Click Yes in the confirmation prompt.
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