What is the model number of the HP. With the side pane open you see 3 physical drives, correct?
From looking at the partitions, most are all free space and it looks like there are actually 3 disks. This is what I would do if no data is required on any of the disks
Find out if the computer has UEFI firmware. If it does make sure the settings in UEFI are not set to Legacy or CSM boot.
If UEFI then delete partition 2 on disk 0. Install Windows to the unallocated space of disk 0. Windows will automatically partition and format the unallocated space but be sure to delete the MSR partition on disk 2 first.
If the computer is not UEFI and has a legacy BIOS delete partition 1 on disk 1 and install to the unallocated space but be sure to delete the MSR partition on disk 2 first. Later you can format disk 0 as a GPT disk and regain the full 3 TB and use it for DATA.
Leave Disk 2 partition 2 alone and use it for DATA\
Edit: Tap F9 at boot. You should get this image if UEFI.
Edited by JohnC_21, 21 August 2017 - 05:15 PM.