PCI Encryption Decryption Controller: Troubleshooting Guide

However, users also report PCI encryption decryption controller issues with their systems. This issue can stop you from saving files.

• The PCI Encryption Decryption Controller is known to cause issues with the OS.
• This driver is mostly encountered on Windows 8 and Windows 10.
• The pci_decrypt_action_not_allowed_driver_error can lead to system crashes.

Check the Encrypted drives

1. Using a script or a software tool, check if you have encrypted drives.
2. If some’re encrypted, check if their encryption is working properly.
3. Check for the Encryption Key
   Using Device Manager, check if the Encryption key is available.
4. If not, right-click the PCI Encryption Controller and select Update driver.
   
5. Browse for the driver and install it.

Perform a clean boot

1. Press Windows + R to open Run, type msconfig, and hit Enter.
2. Go to the Services tab, double-click on Hide all Microsoft services, and uncheck Hide all Microsoft services.
   
3. Go to Startup, uncheck Load startup items, and hit OK.
4. Restart your computer.
5. Check if it helps.

Run the SFC and DISM scan

1. First, open the Run accessory by right-clicking the taskbar and selecting Run.
2. Input sfc/scannow in Run’s Open box, and press the OK button.
3. After doing that, the System File Checker will scan for corrupted system files.
   
4. Press the OK button if it finds any corrupted system files.
5. Next, press the OK button again to close the System File Checker.
6. Click the Start button, and enter appwiz.cpl in the Start search utility.
7. Click All apps on the search results to open a list of software installed on your PC.
   
8. Select the Programs and Features option to open the window shown directly below.
9. Click the Uninstall button for PCI Encryption Decryption Controller, and the uninstall process will begin.
10. Thereafter, restart Windows if prompted.
11. Thereafter, double-click the DISM.
    
12. Click the Scan for hardware changes option on the DISM window.
13. Then, select PCI Encryption Decryption Controller as the Drive to scan for hardware changes.
14. Press the Check button for the PCI Encryption Decryption Controller to scan for hardware changes.
    

Reset Windows

1. Go to Settings > Update & Security.
2. Click on Recovery from the left pane.
3. Click on Reset this PC.
4. Select the Keep my files option.
   

Perform a system restore

1. Press Windows Key + R to open Run.
2. Type restore in the text box and press Enter to run System Restore.
   
3. If System Restore opens, click on Next.
4. Choose a restore point and click on Next.