How to Fix Error [pii_email_07cac007de772af00d51] Code?

Did you ever get an error message with the code [pii_email_07cac007de772af00d51] when using Microsoft Outlook? 

Here are some simple hacks to fix such types of issues.


Microsoft Outlook is one of the topmost applications in the world which is used by all kinds of business purposes for the need of communication with the clients and also with their customers which will help in the growth of the business.

Error [pii_email_07cac007de772af00d51] pops up when there is an error in the installation process or when there are too many accounts connected to the same device. 


Microsoft Outlook can be opened, but you will see the following error message: [pii_email_07cac007de772af00d51] The error may occur if you have more than one Outlook account. It will appear [pii_email_07cac007de772af00d51] Error Code when you enter or log out multiple accounts on the same platform. In some cases, when you install more than one email program, Microsoft Outlook conflicts with other programs and causes this error.

Cause for [pii_email_07cac007de772af00d51] error code

There unit of measurement a unit several causes that is during a position to reason error [pii_email_07cac007de772af00d51] to occur. kind of them unit of measurement listed below:


1-If you are victimising many outlook accounts and you are not deleting the cache and cookies, then it will stop outlook from functioning properly and might cause a slip-up .


2-The error might occur if, wherever fixing the appliance, the plan of action was understood.


3-Another reason square measure it’s conflicting with wholly totally different applications placed in your portable computer or laptop computer .


If using a web-based version of Microsoft outlook then conjointly this error is caused.

How to fix[pii_email_07cac007de772af00d51] error code?


  1. Uninstall and again install the Microsoft outlook:

Error [pii_email_07cac007de772af00d51] is often common when your current version of Microsoft is being corrupted or not functioning properly. To resolve this issue you need to uninstall the program and reinstall it again. Follow the instructions below to reinstall the program.

  • First, open the control panel and go to programs and features.

  • Search Microsoft Outlook and click on it.

  • Click uninstall present at the top of programs and features.

  • An uninstall window will open, follow the instructions on it to complete the process.

  • Now reinstall the program.


  1. Repair program and features:

You can try to restore your outlook from the programs and features option. Follow the guidelines below to repair the program and features.


  • Open the control panel and go to programs and features.

  • Search Microsoft Outlook/ office 365 and choose that option.

  • At the top of the programs and window, click the edit button.

  • A window will open, their selected repair.

  • Follow the instructions that will be given to complete the repair process.

  • When completed, restart your system and check if the error is solved.


  1. Update Microsoft Outlook:

It is quite possible the version of Microsoft Outlook you are using is not compatible with your system and that’s why your outlook is giving errors. For this, you need to update your email software to the latest version.

  • Your computer might have an older version installed. You need to uninstall it right away.

  • Be sure to back up your necessary files before uninstalling it.

  • Now install the latest version of Microsoft outlook.


  1. Troubleshooting method:

If you are not able to resolve the error [pii_email_07cac007de772af00d51] up till now then you can try the troubleshooting method.

  • Click on the windows icon on the keyboard and go to settings.

  • Select update and security method, there you will find the option of troubleshooting.

  • Click yes to activate the troubleshooting application.

  • Wait until the configuration is finished.

  • Now reboot your system and launch Microsoft Outlook and see if it is working.


  1. Change server port number:

Here is another solution to resolve the error [pii_email_07cac007de772af00d51]. To change the server port number you need to


  • Validate outlook.

  • Click the file and go to account settings.

  • Select the email option there and choose your account from the given list.

  • On another window pen, an email account will open.

  • From there, select more settings and choose internet email settings.

  • Now select the advanced tab.

  • From here, change SMTP number 465 to 587.

  • Save the changes and you are done.


  1. Duplicate Accounts removal:

Multiple accounts can also cause errors [pii_email_07cac007de772af00d51]. You need to remove duplicate accounts.

  • In outlook open account and settings.

  • You will find an option of messaging tab, there you will be able to see the duplicate account.

  • Select the option delete.

  • Now refresh your outlook and check if the error has been resolved.


After all, if the error message proves stubborn and impossible to resolve, it could be because it is caused by a hidden error that only a technician can spot.

At this point, it is better to call on the Microsoft technicians to look into the matter and have it resolved for you.


The [pii_email_07cac007de772af00d51] Error Code has got to be the most common and annoying error to come across when using Microsoft Outlook.

The resolutions suggested here should give you all the details you need to clear this error and to have you back sending and receiving emails with no further interruptions.


Leave a Reply

Your email address will not be published. Required fields are marked *