Method 2: Add Linux boot entry in the boot settings. Many people encounter another common issue: the absence of Linux grub entry from the boot options. This means that there is only Windows, no Linux option in the boot settings. If it is the same case with you, go to BIOS settings. Yes No. 4 REPLIES. DGroves. 6,029 1,353 557. Level 12. 01-13-2021 09:43 AM. reset bios back to defaults, and both legacy/UEFI will be enabled. if not then disable TPM in the bios, not all systems allow you to do this via the bios you may need to use the BCU app under windows to change this setting. you MUST create BIOS administrator's password HDD is visible, but not USB. If the HDD option is visible at Boot Menu, but not the USB drive, follow these tips and reboot your computer to try again: If your computer has multiple USB ports: plug and unplug the flash drive in different ports for each boot you do; If your computer has USB 2.0 and USB 3.0 ports: try to use the flash drive only BootMenu does show USB and other boot-options when USB is formatted as a MBR, NTFS, not-bootable datastorage. it also appears that the HP BootMenu does show boot-options when UEFI-mode is disabled in the BIOS. Same Sandisk USB-key tested in a Lenovo laptop bootmenu without any problem. Also other brand USB-key tested in HP Z440 bootmenu without I needed to download two files (adksetup.exe - run this and select "Deployment" only and adkwinpesetup - just run) and Arconis created the USB rescue disk and on reboot/F12 the USB shows up and works correctly. Hope this helps. I did not make any changes the BIOS, just verified that boot from USB was enable and Fastboot was set to "Thorough". I am not a HP employee. Maybe the following Intel Technology Brief may provide some insight . My take on this is you need a supported operating system. W7 needs drivers. You need the BIOS UEFI boot option active and GPT to boot to an NVME M.2 drive. I have run W7 on an NVME M.2 drive, as the boot device, using the previous parameters. Turn off the computer and wait five seconds. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings. Press F10 to Save and Exit. I quickly checked the BIOS options and noticed that the Legacy Boot Source has my HDD listed so I know it is discovered, however it is not shown in UEFI. Correct me if I am wrong but Windows 8 boots from UEFI. This is the problem, it has no HDD to boot from in these options. What I have done thus far: Full chkdsk scans, HDD is fine. That is the case in the BIOS settings found under Boot options in the BIOS of my current product loan Omen 15. Enter the BIOS and go to system configuration. Locate and select load default settings. If that does not work then you will have to download the most current BIOS softpaq and run it on another PC. Turn on the computer and repeatedly press the F11 key, about once every second, until the Choose your keyboard layout screen appears, then follow these instructions: a) Click to select the keyboard layout. b) The computer restarts. If the recovery partition on the hard disk drive is functioning correctly, the Choose an Option screen appears. ujsaX.