The PCI Encryption/Decryption Controller, which is pre-built in the motherboard, keeps your computer data safe from hackers.

If you’re getting a PCI Encryption/Decryption Controller driver issue, it means your computer, including your data, is under security threat. It’s urgent to get it fixed as soon as you could.

But worry not, follow the instructions below, and you will sort it out:

  1. Check for Windows Updates
  2. Update your driver automatically
  3. Manual update
  4. Reinstall Windows OS
  5. Check for hardware issues 

For most people, simply updating the PCI Encryption Decryption Controller Driver solves the issue. However, if updating the driver doesn’t help, you’ll need further troubleshooting until the problem is fixed.

1. Check for Windows Updates

Usually, Windows automatically checks for updates for you. Here’s how you can do it:

  1. On your keyboard, press the Windows key and the I key together to Windows Settings.
  2. Click on Windows Update from the left panel and start checking for updates.
  3. Restart your computer.

If this doesn’t resolve the PCI Encryption/Decryption Controller driver issue, move on to the next method.

2. Update your PCI Encryption/Decryption Controller driver automatically in Device Manager

This is the easiest method worked for most of the users when the PCI Encryption Decryption Controller Driver goes into trouble.

To update this driver, here’s what you can do (please note that the following screenshots are taken on Windows 11, but the instructions work on Windows 10 as well):

  1. On your keyboard, press the Windows key and X at the same time, select Device Manager.
  2. Double-click to expand the category Other Devices. Then right-click PCI Encryption Decryption Controller and select Uninstall Device first.
  3. On the popup window, click on the Uninstall button to confirm the uninstallation.
  4. Restart your computer for the generic PCI encryption/decryption controller driver to be reinstalled for your computer.
  5. Check and see if the problem is fixed.

3. Manual update

Alternatively, you can perform a manual update for the PCI encryption/decryption controller. Most of the time, outdated Motherboard drivers can cause issues like this. To update your motherboard drivers (or chipset drivers), please refer to our previous article:

Update Motherboard Drivers on Windows 11, Windows 10

4. Reinstall your Windows OS

One other thing which is worth mentioning is performing a clean Windows Reinstallation. It resets all the drivers and incorrect configurations that might cause the issue. However, be careful when trying it, as it may be beyond complicated and can cause loss to your database. It’s highly recommended that you have someone professional by your side to offer you technical guides at any time.

You can also refer to Microsoft Support to see how to reinstall Windows safely. Here’s the link:

5. Check for hardware issues

There’s still a possibility that something wrong could happen to your motherboard itself, resulting in the PCI Encryption/Decryption Controller driver issue.

If you’re continuously having trouble installing the driver or getting Faulty I/O ports, you need to consider repairing or changing your motherboard, as the error indicates that the motherboard may be damaged.

Hopefully, one of the methods recommended above should help you resolve the problem. If you have any questions, please feel free to comment below.