According to Dell web page 5290 2 in 1 is listed for windows 11 update. But when I run Microsoft windows 11
requirement TPM 2.0 is shown missing. Does this mean TPM 2.0 chip was not installed from manufacturing /
facotry point? Tablet is really good
Not necessarily. The system likely does not have a TPM chip at all, but the CPU supports Intel PTT, which is the same as TPM support.
Is the system running in UEFI mode (GPT disc) with secure boot and PTT enabled?