Share via

PCI encryption/decryption controller driver shows driver is missing in device manager

Anonymous
2025-01-17T11:31:33+00:00

PCI encryption/decryption controller driver shows driver error in device manager.The driver for it is iaStorv.sys. I have a problem where a newly attached external DVD RW drive doesn't recognize a CD R. The driver for it is CDROM.sys.

I believe that if the PCI encryption/decryption controller driver shows driver were to be changed, the DVD RW drive will work.

Please get back to me soon.

Jillakaangel

System Information:

OS Name Microsoft Windows 11 Pro
Version 10.0.22631 Build 22631
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name JILLSCOMPUTER
System Manufacturer intel
System Model BSWB2E
System Type x64-based PC
System SKU Type1 - SKU0
Processor Intel(R) Pentium(R) CPU J3710 @ 1.60GHz, 1601 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date INSYDE Corp. BSWB2E.WBK.V003, 10/10/2023
SMBIOS Version 2.8
Embedded Controller Version 160.02
BIOS Mode UEFI
BaseBoard Manufacturer Type2 - Board Manufacturer
BaseBoard Product Type2 - Board Product Name
BaseBoard Version Type2 - Board Version
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.22621.2506"
User Name JillsComputer\jilla
Time Zone US Mountain Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.85 GB
Available Physical Memory 3.05 GB
Total Virtual Memory 8.35 GB
Available Virtual Memory 2.49 GB
Page File Space 512 MB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Running
Virtualization-based security Required Security Properties
Virtualization-based security Available Security Properties Base Virtualization Support, Secure Boot
Virtualization-based security Services Configured Hypervisor enforced Code Integrity
Virtualization-based security Services Running Hypervisor enforced Code Integrity
Windows Defender Application Control policy Enforced
Windows Defender Application Control user mode policy Off
Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

Device Manager:

Windows for home | Windows 11 | Devices and drivers

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2025-01-23T12:19:29+00:00

    Dear Jillakaangel

    Thank you for posting in the Microsoft community.

    In Windows 11, when Device Manager shows PCI Encryption/Decryption Controller Missing Driver, it means that the system failed to automatically install the proper driver for it. This issue may affect the functionality of other external devices, such as external DVD RW drives. This guide will help you fix the missing PCI Encryption/Decryption Controller driver issue and check for potential problems related to external DVD RW drives.

    Problem Analysis

    1. PCI Encryption/Decryption Controller:

    This is a device associated with the motherboard chipset and is usually supported by either the motherboard's driver (chipset driver) or Intel's RST (Rapid Storage Technology) driver.

    Missing or corrupted drivers may affect the system's ability to correctly recognize other hardware such as external devices.

    2. External DVD RW drive issues:

    If the driver (CDROM.sys) for the DVD RW works fine, but the device does not recognize the CD-R, this may be related to the following reasons:

    PCI encryption/decryption controller missing drivers and hardware compatibility issues.

    USB port power management or kernel I/O issues.

    The external DVD RW drive itself may be abnormal.

    Method 1: Using the driver provided by the motherboard or OEM

    1. Determine your computer's motherboard model:

    If it is a desktop computer, go to the motherboard manual or the motherboard's official website and look for chipset-related drivers.

    If it's a laptop, go to the manufacturer's official website (e.g. Dell, HP, Lenovo, etc.) and download the driver according to the device model.

    1. Visit the motherboard or manufacturer's website:

    Download the motherboard chipset driver (e.g. Intel Chipset Utility or AMD Chipset Driver).

    If it is an Intel chipset, you may need to download the Intel Rapid Storage Technology (RST) driver.

    1. After installing the driver, restart the computer and recheck the Device Manager.

    Method 2：Checking the external DVD RW drive

    After resolving the PCI encryption/decryption controller, the problem may still be associated with the DVD RW drive. Below are the troubleshooting steps:

    Method 2.1: Update CDROM Driver

    1. Open Device Manager and locate the DVD/CD-ROM drive.
    2. Right-click on your DVD RW drive (usually lists the drive model number, e.g. extern_DVD_RW...) Select Update Driver.
    3. Choose to search for the driver automatically or specify the driver path manually.
    4. Make sure the system is using the latest cdrom.sys driver.

    Method 2.2: Checking Drive Connectivity and Compatibility

    1. Try to change the connection port:

    Plug the external DVD RW drive into a different USB port (if possible, use the USB 3.0/3.1 port).

    1. Check the USB power options:

    Open Device Manager and expand Universal Serial Bus Controllers.

    Locate the USB Root Hub listed, right-click and select Properties.

    In the Power Management tab, uncheck Allow the computer to turn off this device to conserve power.

    1. Verify drive compatibility:

    Make sure your external DVD drive supports the media you are trying to read (e.g. some models may not support CD-R).

    Best Wish

    Shawn.Z-MSFT | Microsoft Community Support Specialist

    3 people found this answer helpful.
    0 comments