How To Troubleshoot The [Pii_email_799917d0a8af2718c581] Error?

How To Troubleshoot The [Pii_email_799917d0a8af2718c581] Error?

[pii_email_799917d0a8af2718c581]  is an error code that is encountered while using Microsoft Outlook. It is generally accompanied by an error message prompting the user to view the error information in the program files directory. This error code leads to a disruption of the Outlook application and is difficult to fix unless proper directions and steps are followed. This article will provide a step-by-step guide on how to fix the [pii_email_799917d0a8af2718c581] error code, as well as providing information on some of the potential causes of this error. 

What is [pii_email_799917d0a8af2718c581] Error?

[pii_email_799917d0a8af2718c581]  is an error code sent by Microsoft Outlook and is caused due to disruptions in the program. The connectivity, settings, and other key elements of Outlook can become out of order and display this error code whenever this occurs. It prevents Outlook from working correctly, which can be incredibly frustrating. 

Potential Causes

There are several potential causes that can result in the [pii_email_799917d0a8af2718c581] error:

  • Improper installation of Microsoft Outlook
  • Outdated Windows OS
  • Interfering add-ons and apps
  • Using multiple accounts on Outlook
  • Corrupted Windows registry

Step-by-step Solution

By following these steps, users can successfully fix the [pii_email_799917d0a8af2718c581] error code:

Step 1: Clear All Cache and Cookies 

Clearing the cache and cookies helps to free up the storage space of the computer and the browser, allowing for improved performance. To clear the cache and cookies, open the browser and click on the “Settings” option. From there, select the “Privacy and Security” tab. Then, click on “Clear browsing data” and select all the checkbox options. Finally, click on the “Clear data” tab. 

Step 2: Uninstall Microsoft Outlook

The next step is to uninstall the Microsoft Outlook application from the computer. Go to the “Control Panel” and click on the “Programs and Features” option. There find the Microsoft Outlook application and right-click on it. Then, select the “Uninstall” option and confirm it. 

Step 3: Download and Re-install Outlook 

The next step is to download the latest version of Outlook from the official Microsoft website and re-install it in the computer. For this, follow the on-screen instructions carefully and click on the “Install” button to finish the installation. 

Step 4: Repair Windows Registry 

The Windows registry can also be damaged, resulting in the [pii_email_799917d0a8af2718c581] error code. To repair this, go to the “Control Panel” and select the “System and Security” option. Then, choose the “Administrative Tools” and open the “Registry Editor”. Find the corrupted entries and delete them by right-clicking on them. Finally, reboot the computer. 

Step 5: Scan the System 

The last step is to scan the system to ensure there are no malware or virus that may have caused the [pii_email_799917d0a8af2718c581]  error code. Use a reliable antivirus and scan the system for any malicious elements. After the scan is complete, remove the identified threats from the computer.


The [pii_email_799917d0a8af2718c581] error code can be fixed by following the above-mentioned steps in detail. It is recommended to use reliable antivirus software for scanning and virus removal, as well as downloading the latest version of Outlook from the official website. With the right steps and methods, users can successfully repair the Outlook application and fix this annoying error code.

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