The PCI Encryption/Decryption Controller is typically part of a chipset (often AMD or Intel) or a dedicated security module (such as TPM - Trusted Platform Module). On Windows 7 64-bit, this driver may not install automatically, resulting in a yellow exclamation mark in Device Manager.
Microsoft has ended support for Windows 7. For security and compatibility, consider upgrading to Windows 10 or 11. If you must use Windows 7, ensure you have the KB3033929 update installed (adds SHA-2 code signing support) before installing modern drivers. pci encryption decryption controller driver windows 7 64 bit
After rebooting, verify success:
