XPS 8920, Firmware TMP

The 8920 is not in the Dell tested list for windows 11

and there are no windows 11 drivers on the 8420 download page 

The 8930 is --with a note I can't find. 

To activate the TPM on your Dell computer in BIOS, perform the following steps.

1. Reboot your computer.
2. Press F2 once a second when the Dell logo appears.
3. Once in the BIOS (XPS):

1. Expand the Security section.
2. Select TPM 2.0 Security.
3. Select TPM On.
4. Select Apply.
5. Select Exit.

To Verify that the TPM is detected, perform the following steps.

1. Logon to Windows.
2. Right Click on the Windows Start Button.
3. Click Device Manager.
4. Expand the Security Devices Node.
5. You should see the Trusted Platform Module 2.0.
   NOTE: If you don’t see the Trusted Platform Module 2.0, or the device shows a yellow triangle next to it, allow Windows to update the driver by performing the following steps.

   1. Right-Click on the Trusted Platform Module 2.0
   2. Click Update Driver.
   3. Click Search Automatically for updated Driver version.
   4. Click Search for updated driver version on Windows Update.
   5. Click the Check for updates button.
   6. Click View optional updates.
   7. Select the TPM module driver from the Driver Update list and click Download and Install.

@Larry R.  - Keep in mind the Microsoft Win 11 compatibility tool isn't always correct.

That said, what CPU do you have in your XPS 8920? Dell's specs for XPS 8920 say it's a 7th Gen Intel CPU, but I don't know if the specs are up-to-date.

The Microsoft list of CPUs supported for Win 11 only has three i7-7xxx CPUs but there are no i3-7xxx or i5-7xxx CPUs on that list. So this might be an issue for you...

The good news is Win 10 will be supported until Oct'2025 so you can keep using the XPS 8920 for another 4 years.

@Mary G  - I've also wondered about the * next to XPS 8930 on Dell's list of PCs tested for Win 11. I did ask, but...

    That doesn't work, those "options" aren't in the BIOS.  The only selection in the "Security" section of BIOS has "Firmware TPM," with a choice of "enable or disable;" it IS set to enable, but Microsoft reports NO TPM at all.

There is no "Security Device" node in Device Manager!

It has come to the point that you may need to update your bios, which has inherent risk of bricking the motherboard.  Before considering bios update, try replace CMOs battery w a brand new CR2032 and clear CMOs settings by jumper reset on motherboard.  The assumption is although you have enabled tpm in bios, bios has not actually detected the presence of TPM due to a CMOs corruption.  Reset bios may help but no promise.

I am not sure if this was mentioned but since you have an Intel CPU have you checked in the BIOS to make sure Intel PTT is enabled? This video may offer more information.

And as @Mary G stated since your system is not on the list of supported computers Dell will not be supplying drivers. Also should you in the unlikely circumstance that you need service, Dell will insist that you reinstall Windows 10.

Re: Microsoft reports no tpm at all.

can you upload a screenshot of your device manager that expands System Devices as well as Security Devices?

When you open Device Manager do you see any TPM listed under System Devices or Security Devices?

    Supposedly Microsoft is working on Win 11 updates that will allow 7th Gen, and possibly 6th Gen Intel processors to run Win 11.  It's a bit annoying (to say the least) since my i7-7700 is less than 2 years old.  I have a Win 10 (Lenovo) laptop that is 3 years older than the XPS, and it already HAS TPM 2.0, whether or not it could even run Win 11.  (MS does say it has TPM 2.0)

No options related to Security or TPM anywhere; not in Device Manager, or elsewhere, except "Firmware TPM being enabled (or not) it is clearly ENABLED

INTEL PTT TPM must be enabled in bios.  These models do not come with hardware TPM.

@Larry R. 

Mosetup method works fine with 4th Gen CPUs like the precision T1700 has. Intel’s PTT was Introduced in 2013 on Intel Core processors and chipsets, including Intel Haswell ULT multichip packages, as well as on Atom-based, system-on-a-chip solutions like Bay Trail. PTT enables low-cost and low-power devices to support the same root of trust concepts enabled by hardware-based TPM. Furthermore, it supports all of Microsoft’s requirements for firmware Trusted Platform Module (fTPM) 2.0

Ways to install win11

That doesnt sound correct because its been there since the 8900.

8900, 8910, 8920, 8930, 8940 etc.

Hardware TPM is reserved for the Precision and Optiplex line.

(Platform Trust Technology). PTT is a lower-cost solution that supports the same functions of the TPM. From an OS perspective, there is very little difference between how TPM and PTT interact with bit locker. If there is no option for TPM in the BIOS,you need to enable PTT.

TPM is provisioned after enabling TPM.

You may need to clear and reboot then enable and reboot,

1. Tap the F2 key when the Dell logo appears to enter the BIOS.
2. Expand the "Security" section, click "PTT Security", and deselect Intel Platform Trust Technology.
3. NOTE: If PTT is greyed out as well, re-enable PTT by disabling Intel Trusted Execution under Virtualization Support.
4. Restart and Enable PTT it will require a key

 Intel PTT is not an option in the BIOS.

@Larry R.  Is the Load Legacy OPROM option enabled on the Boot menu in BIOS setup?

That has to be disabled before TPM will work. So check that setting...