No user manual or printed information was enclosed in the package.It is impossible to access the Bios.  Because of this, I can not assign what peripheral to boot from.** Note: I have now installed an Nvidia GPU having DDR5 video memory to get the 4k resolution I want. Now I can access the UEFI (Bios settings).As there are many options for this model. I received a model having an SD card reader instead of the model specified in the ad that indicated two USB ports at this location.Windows 10 was installed and appears to be working fine. However, in the ad, no mention that Windows 11 has issues:  The processor isn't currently supported for Windows 11 and may never be  Processor: Intel Core i7-6700 CPU @ 3.40GHz  I can not access the Bios - TPM 2.0  can not be initialized and is not recognized by the  Windows PC Health program.On the plus side, the computer is very quiet.