The Outlook 0x80070021 error is a problem that can occur when you try to open your Outlook email account on your computer. This problem can be caused by a number of things, but the most common cause is that the Outlook program has not been installed properly. If you have not installed Outlook yet, you can do so by going to the Start screen and clicking on Programs and Features. Then, under the “Outlook” heading, click on the “Install Now” button. After installation is complete, open Outlook and try to send or receive an email. If you experience any problems with opening or sending emails, please contact your Microsoft support representative.

Fix the Outlook 0x80070021 Error

By Making Sure Outlook Isn’t Working in The Background

This error can occur when the user tries to copy the PST file or MS Outlook file and the app associated with it is still running in the background. This can be a problem because it can slow down your computer and make it difficult to do other tasks.

Outlook is running in the background and you can’t stop it. To stop Outlook, open the Task Manager and go to the Processes tab.

If Outlook is running, you can stop it by right-clicking on it and then clicking on the ‘End task’ button.

Some users have also seen the error getting fixed when they close the Skype app from the background as well so you might want to try that too. ..

By Uninstalling MS Office Communicator

Step 2: Type “cmd” and hit enter. Step 3: Type “netstat -an” and hit enter. Step 4: Type “ping 127.0.0.1” and hit enter. Step 5: If the ping results in a response, type “whois -h” and hit enter. If the ping results in no response, then the computer is not connected to the internet and cannot be accessed through a search engine or a Windows command prompt.

Step 3: In the Appwiz.cpl window, type “msconfig” and hit enter. Step 4: In the MSconfig window, type “appx” and hit enter. Step 5: In the Appx window, type “installer” and hit enter. Step 6: In the Installer window, type “cmd” and hit enter. Step 7: Type “netstat -an” and hit enter. Step 8: Type “ping www.google.com” and hit enter. The results of these commands will show you that your computer is connected to the internet, as well as how many websites are currently online.

Step 3: From the uninstaller windows, search for Microsoft Office Communicator.

If you see Microsoft Office Communicator listed there, select it, right-click on it and click on ‘Uninstall’. ..

After uninstallation, you should not be facing the error again.

By Clean-Booting The Windows

Step 2: Type “cmd” and hit enter. Step 3: Type “netstat -an” and hit enter. Step 4: Type “ping 127.0.0.1” and hit enter. Step 5: If the ping results in a response, type “whois -h” and hit enter. If the ping results in no response, then the computer is not connected to the internet and cannot be accessed through a search engine or a Windows command prompt.

Step 3: In the Microsoft Configuration Manager window, click on the “Services” tab. Step 4: In the Services window, click on the “Windows Update” button. Step 5: In the Windows Update window, click on the “Check for Updates” button. Step 6: In the Check for Updates window, click on the “Update Now” button. Step 7: In the Update Now window, type in “msconfig” and hit enter.

Step 3: From the new window, select ‘Selective startup’.

This step will add a list of items to the startup screen that you can select from.

To load the system services, click on the ‘Load system services’ checkbox. To use the original boot configuration, uncheck the ‘Use original boot configuration’ checkbox. ..

Disable all Microsoft services in the Services tab.

Step 7: Now you can apply the setting and click on OK. Then you have to click on the ‘Restart’ option. ..

To copy your Outlook PST file:

  1. Open Outlook and sign in.
  2. In the Navigation pane, click File and then click Export.
  3. In the Export Outlook PST dialog box, select Normal as the export format and click OK.
  4. In the Navigation pane, under Files, click your PST file name to open it in a new window.
  5. Click Copy to copy the PST file to your computer’s hard drive. ..

By Booting Windows in Safe Mode

Step 2: Type “cmd” and press the Enter key. Step 3: Type “netstat -a” and press the Enter key. Step 4: Type “ping -n” and press the Enter key.

  1. Restart your computer and then go to Troubleshoot.
  2. Under Advanced options, click on See more recovery options.
  3. Under Startup Settings, you can choose what happens when your computer starts up. ..

Now click the ‘Restart’ button. ..

Step 4: When you see the Startup Settings list, press 4 key to select ‘Enable Safe Mode’.

To copy your PST file in Safe Mode, follow these steps:

  1. Boot your computer into Safe Mode by pressing F8 when you start it up.
  2. When the Advanced Boot Options menu appears, select Safe Mode and press Enter.
  3. If you are prompted to choose a device to boot from, select your hard drive (C:) and press Enter.
  4. When Windows starts in Safe Mode, open the File Explorer window and navigate to C:\Users\YourUserName\AppData\Roaming\Microsoft\PST Files.
  5. Right-click on the PST file that you want to copy and select Copy (or press Ctrl+C).
  6. Close the File Explorer window and restart your computer. ..

By Removing the Outlook’s Search Email Indexer Add-in

Step 2: Choose ‘New’. Step 3: Type ‘Outlook’ in the text field and click ‘Create’. Step 4: In the ‘Outlook’ dialog, enter your name and email address. Step 5: Click ‘Create’. Step 6: In the ‘Outlook’ dialog, enter your password and click ‘Confirm Password’. Step 7: Click on the ‘Sign In’ button to finish creating your account.

Step 3: In the ‘Options’ box, you will find a number of options. Option 1: Click on the ‘Create a new password’ button. Option 2: Enter your current password and click on the ‘Create’ button. Option 3: Enter a new password and click on the ‘Enter’ button.

Step 4: In the Add-ins window, click on ‘Google Analytics’. Step 5: In the Google Analytics window, click on the ‘Configure’ button. Step 6: In the Configure window, enter your Google Analytics account information. Step 7: Click on the ‘Finish’ button to finish configuring your Google Analytics account.

Step 4: Click on ‘Com Add-ins’ from the ‘Manage’ drop-down menu, and then click on the ‘Install’ button. ..

To remove the email indexer:

  1. Open the “Search Email Indexer” add-in.
  2. Click on the ‘Remove’ button. ..

You have just completed a difficult task and now you are all set.

This is how you can fix the Outlook 0x80070021 Error in Windows 10. If you experience any difficulty, please don’t hesitate to reach out to us.

If you are experiencing an error code 0x80300001, there are a few things that you can do to try and fix the problem. Some of the most common solutions include updating your Windows 10 operating system, reinstalling your software, or resetting your computer. ..