How to Fix [pii_email_cbd448bbd34c985e423c] Error Code?

[pii_email_cbd448bbd34c985e423c] is quite common but an annoying issue, most of the Outlook users encounter. Many users have reported that they can not send or receive emails using their Outlook account and are prompted to this error code. This issue can arise due to variant reasons; there may be a different reason for error for different users. Identifying the precise cause of the issue should be your primary goal. Because of this concern, this discussion completely covers all of the error aspects followed by effective strategies to fix them.

What causes the error [pii_email_cbd448bbd34c985e423c] in Outlook?

We have precisely highlighted the most common causes of [pii_email_cbd448bbd34c985e423c] error you may encounter in your Outlook application.

Poor internet connection 

A weak and unable internet connection can badly affect any application that requires internet connectivity; the same is the case with the Outlook application.

Virus or malware 

Fishy or virus-infected emails are very common nowadays. You may receive such emails in your Outlook mailing dashboard, and opening such mails often leaves malicious results on your system & Outlook application and trigger the error [pii_email_cbd448bbd34c985e423c]. But this is a rare situation you may encounter in respect of this error.

Antivirus software incompatibility with Outlook

Sometimes the antivirus software may face an incompatibility problem with the Outlook version installed on your system, and this antivirus incompatibility issue affects the working of Outlook by causing the error [pii_email_cbd448bbd34c985e423c].

Corrupted Outlook file 

If you are trying to launch the Outlook app on your system for the first time or right after its installation, you get prompted to the error [pii_email_cbd448bbd34c985e423c], then the only reason that has triggered this error is any corrupted or bugged file present in your Outlook folder.

Fixes to [pii_email_cbd448bbd34c985e423c]

Before moving on to proper listed fixing strategies to the outlook error [pii_email_cbd448bbd34c985e423c], make sure that the local internet connection you are using is of high quality. A good internet connection is crucial. It must be stable enough to establish an interrupt-free connection over the Outlook application; 4G is recommended.

Removal of malware

Suppose a virus or malware has already infected your Outlook application. In that case, the only thing you can do is to use good antivirus software to remove the malware that opposes the smooth working of Outlook.

There are numerous reliable & efficient antivirus software available online free & premium features such as AVG, Bitdefender, Avast, etc.

Note: adoption of an adequate precaution is also necessary to avoid similar cases in the future. So, it is recommended that you just ignore such unknown, junk, or malicious mails, or you simply delete these without opening them.

Repair corrupted file

The instant solution to overcome a corrupted Outlook file is to repair it by using any reliable repairing tool. If this repairing does not work in your case or don’t want to go with this option, then the best alternative you can adopt is the reinstallation of the Outlook application on your system.

You can reinstall the Outlook app from Microsoft’s official site. Before reinstallation, you would need to uninstall the existing Outlook application.

To uninstall the Outlook app:

  • Go to the windows settings.
  • Open apps settings from the settings menu.
  • Click on Apps & features option.
  • Select the MS Outlook app from the available list of apps.

Click on uninstall button & follow the further uninstallation commands.

Settings> Apps> Apps & features> Microsoft Outlook> uninstall

The corrupted Outlook file will also get deleted by this uninstallation.

Upgrade or disable antivirus software

If the antivirus software installed on your system is the cause of the error [pii_email_cbd448bbd34c985e423c], then the quick solution is to disable your antivirus. No need to delete it permanently as you may require it for later use; you can temporarily disable the antivirus from its settings.

If you are using default windows defender software, you can disable it by following ways:

  • Access your windows setting.
  • Navigate to the “Update & security” option in the settings menu.
  • Select the “windows security.”
  • In windows security, click on “app & browser control” and switch off all three options.

Settings> Update & security> Windows security> App & browser control 

The instant disabling is a temporary fix, though, but you must install the version of antivirus that is fully compatible with your Outlook application for the last results. 

Contact MS support

If you have tried all of the fixes stated above and nothing worked in your case, then it is probably a situation that you can’t deal by your own. 

There might be some sort of complex technical issue in your MS Outlook that can only be resolved by Microsoft support. In such a situation, you must contact MS support to get accurate guidance over the occurred issue.


The problem you may encounter in your Outlook application dashboard in the form of [pii_email_cbd448bbd34c985e423c] error doesn’t get resolved automatically. Still, you need to implement specific fixing strategies manually to get out of this error. This guide has been structured to sort all the related aspects of [pii_email_cbd448bbd34c985e423c] quite quickly by following few tactics. The error [pii_email_cbd448bbd34c985e423c] can occur due to many reasons ranging from general to technical ones; you would have to identify the nature of the error first by going through the given error causes. Then you can implement the most appropriate solution to deal specifically with your problem. The common fixes to this issue may include repairing corrupted Outlook software or file, upgrading the antivirus software or Outlook app, removing malicious files, etc. A strong internet connection is necessary; that’s why we have also pointed towards it in the guide.

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