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How to Fix the [pii_email_37544bf4d350a0915f54] Error?

It’s no arguing the fact that Outlook users are always running into different technical bugs. In this guide, we are going to talk about one such error, i.e., [pii_email_37544bf4d350a0915f54]. For people who don’t know, it’s one of the most common pii errors that thousands of users have encountered in Outlook. If you’re one of them, make sure to read this guide till the last as it’ll help you troubleshoot the problem easily.

Why Does [pii_email_37544bf4d350a0915f54] Error Occur?

Before proceeding towards the solutions, let’s first take a look at the reasons that usually trigger the [pii_email_37544bf4d350a0915f54] error. After going through several online forums and diagnosing the problem ourselves, here are the most common factors behind the [pii_email_37544bf4d350a0915f54] error.

  • There are uncleared cookies and cache files in your web browser
  • Your MS Outlook app is outdated
  • Your PC has potential Virus or malware
  • You are using other third-party email management tools along with Outlook

Also Read: How to Fix [pii_email_037d07812f905a3927ae]: Permission Denied (PublicKey)

So, now that you know what factors usually trigger the [pii_email_37544bf4d350a0915f54] error, let’s check out the best ways to fix it.

How to Fix the [pii_email_37544bf4d350a0915f54] Error?

1. Update Microsoft Outlook

Start by updating Outlook to the latest version. As surprising as it may sound, this is the most effective method to fix any pii error. When you update the app, the existing bugs from the previous version will get removed automatically.

As a result, you’ll be able to access your email accounts without seeing any error whatsoever. To update MS Outlook, simply go to the official Microsoft website and check for updates. In case there are any pending updates, simply install them and reboot your PC.

Now, launch Outlook and see if the [pii_email_37544bf4d350a0915f54] error is fixed or not.

2. Remove Cookies and Cache Files

You can also fix the [pii_email_37544bf4d350a0915f54] error by clearing browser cookies and cache files. These are temporary files that each browser creates to speed up the login process for different web apps. Unfortunately, if you don’t clear these cookies and cache files, they can also affect the normal functionality of your web browser.

So, here’s how you can clear browser cookies and cache files to fix the [pii_email_37544bf4d350a0915f54] error.

Step 1 – Open Google Chrome on your PC. Tap the “Menu” button, click “More Tools”, and select “Clear Browsing Data”. If you don’t want to go through this hassle, you can also press “Ctrl+Shift+Del” to open the “Clear Data” window.

Step 2 – Now, tick the “Cookies and Other Site Data” and “Cached Files and Images” options. Make sure to uncheck the remaining options in the list.

Step 3 – Then, click “Clear Data” to successfully clear cookies and cache files from your browser.

Now, restart your PC and re-login to Microsoft Outlook. At this point, you won’t see the said error anymore.

3. Uninstall Other Third-Party Email Management Tools

As we mentioned earlier, multiple email management tools can also cause the [pii_email_37544bf4d350a0915f54] error. So, if the previous two methods don’t fix the problem, go ahead and uninstall all the other email management applications from your PC. Then, reboot your computer and relaunch Microsoft Outlook to check if the error is fixed or not.

4. Uninstall Microsoft Outlook

If you’re still seeing the [pii_email_37544bf4d350a0915f54] error, it’s quite possible that your app’s installation files aren’t configured properly. In this situation, the only way to fix the error would be to uninstall Outlook.

This will remove all damaged installation files from your system. Once the app is uninstalled completely, you can again install it from scratch to fix the [pii_email_37544bf4d350a0915f54] error.

5. Contact Microsoft Support Team

The final resort to fix the [pii_email_37544bf4d350a0915f54] error would be to reach out to Microsoft’s official support team. Customer support will diagnose your situation and provide you with an effective solution accordingly.


The [pii_email_37544bf4d350a0915f54] error is a common Outlook bug that any user can encounter. But, the good news is that you don’t need any technical support to troubleshoot it. Simply implement the above-mentioned solutions and you’ll be able to fix the problem all by yourself.

Here’s some more PII errors which can be fixed using the same methods
















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