today, I ran the HP recovery disk containing Windows 10 + drivers. So after losing hope, I decided to at least get Windows 10 installed on the SSD.

PROBLEM 2: Impossible to Boot Windows 10 Recovery Disk I always get the same Secure Boot error message and disabling Secure Boot never saves. I tried to do the same process with clearing the secure boot keys, or after logging in as an admin. Out of curiosity, I go back to the BIOS and I realize that the Secure Boot Configuration settings did not save and have all reverted back to Legacy Support Disable and Secure Boot Enable. Selected boot image did not authenticate. The computer restarts and seems to be booting the USB stick but immediately returns the following error message. The cpu restarts and prompts me to validate a 4-digit code to enable Secure Boot. With now everything set up as much as the BIOS allows me to enable Secure Boot, I Exit and Save. Instead of a device list as with UEFI Boot Order, the following sentence is written: 'Enable Legacy Boot, Save Settings & Exit, then Return to Setup'. Below, Legacy Boot Order is greyed out and cannot be unchecked. Only the device booting order can be tweaked so I ranked the USB device first. Below, UEFI Boot Order is greyed out and cannot be unchecked. In BIOS Setup > Advanced > Secure Boot Configuration, I switched to Legacy Support Enable and Secure Boot Disable then Save. The USB device is properly recognized as a UEFI device. I stuck the USB device in the computer, went to F10 - BIOS Setup. Using Rufus, I created a bootable USB stick formatted as Fat32 and partitioned as GPT since my Bios defaults to UEFI. I unplugged the HDD and swapped it with the SSD. PROBLEM 1: Impossible to Enable Secure Boot and Install Windows 7 I know a little but am definitely not a wiz. Sorry in advance if I state the obvious or if I do not use the right wording. I have gone absolutely bonkers after 72 hours of trying. My intention was to pull the original HDD out and do a clean install of Windows 7 on the SSD. I used the spare money to purchase an Windows 7 Pro 圆4 license and a Sandisk 256Gb SSD. I just got a deal on a brand new HP Probook 450 G3 that came with a 1To HDD and Windows 10 pre-installed.

Fresh windows install on new ssd