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How To Solve [pii_email_755c851d9609a91a7da9] Error Code?

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The Allure Blog


[pii_email_755c851d9609a91a7da9] are errors that occur when manipulating your email ID. Today, we will introduce one of the pii errors – [pii_email_755c851d9609a91a7da9]. If you encounter the error code, refer to this post from The Allure Blog to get more details.


When you try to use the Microsoft Outlook application, you may encounter issues, such as errors 0x80070021, errors 0x800ccc0e, and errors 0x80042109. Today, let’s discuss the other error message – [pii_email_755c851d9609a91a7da9]

What causes the [pii_email_755c851d9609a91a7da9] error? The following are some reasons for the issue.

  • The user logged into multiple accounts without clearing the cache and cookies.
  • Microsoft Outlook is not correctly installed on the device.
  • The latest version of Outlook is not downloaded.
  • Your PC and the operating system version you are using.

Next, we will introduce how to get rid of the [pii_email_755c851d9609a91a7da9] error.

How to Fix [pii_email_755c851d9609a91a7da9]

Fix 1: Log out All the Accounts

Since multiple Outlook accounts can cause the [pii_email_755c851d9609a91a7da9] issue, it’s recommended to log out all the logged-in accounts. Then, you can check if the problem has been fixed. If not, try the next.

Fix 2: Clear the cache and cookies

Another way to fix the error code [pii_email_755c851d9609a91a7da9] is to clear all browser cache and history and delete stored cookies. Here, we take Google Chrome as an example.

  • Step 1: Open Google Chrome and tick on the Settings option.
  • Step 2: Go to the Privacy & Security section and click on the Site Settings option.
  • Step 3: Click on Cookies and site data and click on View all cookies and site data. After that, click on the Remove All option.

Then, you can check whether the [pii_email_755c851d9609a91a7da9] error is fixed.

Fix 3: Reinstall Outlook

You have another way to fix Outlook error [pii_email_755c851d9609a91a7da9]. To fix this, you can choose to reinstall Outlook. Usually, reinstalling Outlook can help you resolve this Outlook error.

To reinstall Outlook, you can go to the official Microsoft site and download it. When it’s done, reboot your computer and check if the error [pii_email_755c851d9609a91a7da9] is fixed.

Fix 4: Change the Windows version

If you are using Windows 11 or 10, please downgrade to a newer version by installing Windows 7 or Windows 8 to fix the [pii_email_755c851d9609a91a7da9]error code. Changing the Windows version may help you get rid of this error code.

Fix 5: Update Outlook.

If there is a new updated version of Outlook, you can try updating Outlook to that form to get rid of the [pii_email_755c851d9609a91a7da9] error. To update Outlook, you need:

  • Step 1: Go to the File tag on Outlook.
  • Step 2: Select the Office Account option.
  • Step 3: Click on the Update Options button.
  • Step 4: Select the Apply Update option.


[pii_email_755c851d9609a91a7da9] are frequent and can appear at any time for a change of reasons. So, try to identify the root cause and apply the troubleshooting methods that we have discussed above. This will help you to solve the problem quickly and act before the time runs out.

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