Here is the definitive guide for the driver issue.
Search for "Intel Trusted Execution Engine" on the Dell Support Site . Acpi Msft0101 Driver Download
Once the driver is properly installed, the device will disappear from "Other devices" and reappear inside as Trusted Platform Module 2.0 . Here is the definitive guide for the driver issue
A buggy BIOS is a leading cause. Visit your motherboard/PC maker’s support page, download the latest BIOS, and flash it. After updating, re-enable TPM manually. download the latest BIOS