Hi Brad, i found one solution since i had same issue, i end up to update my ADK  and ADK winPE to the lastest version.  Now am able to deploy our new Optiplex 5490 AIO using MDT. [URL]#other-adk-downloads     hopping this may help someone.   Patrick 
We recently purchased a quantity of Optiplex 5490 AIO's, and I'm trying to image them using our existing WDS / MDT environment.  The environment has worked flawlessly for the last couple of years, imaging everything from Optiplex 3010's to 3080's (and several Latitude laptops as well). When I try to PXE boot the 5490 AIO, I can get into WinPE and choose my image, however once the process gets to formatting the m.2 drive, it comes back with a (paraphrased) "No drives found" error.  It also appears to fail on the NIC as well (same error). When I drop to a command prompt and run diskpart with a "list disk", it reports no drives found. I figured it was a missing driver for both the SATA controller (Intel Rapid Storage) and the NIC, so I located the latest WinPE driver pack on Dell's website (WinPE 10 Version A24 dated 5/12/21), imported those drivers into my WinPE Out Of Box drivers in MDT, rebuilt the WinPE Lite Touch WIM (x64), and redeployed it via WDS. Still having the same issue. Is there a more current version of the driver pack?  This one from May came out before the 5490 was released...  Has anyone else run into this same issue?
Optiplex 5490 AIO & Windows PE