ZBook 17 G3 bios setting

[tinkerstoys]

I am now booting from the the Samsung 850 250gb ssd boots with win 7 pro. Other drive when booted trips back to the ssd  and Win 7. And I never got a manual with this Workstation

[visruth]

I've already provided you with Manual in your earlier thread: https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/ZBook-17-g3-M2-ssd-size/m-p/59...

Primary bay drives can only to booted from.

So see which all drives are in primary bay.

[tinkerstoys]

Primary bay drive is the 1Tb oem drive and secondary is the ssd with win 7

[visruth]

And to which are you booting currently?

[tinkerstoys · Accepted solution]

It starts with the 1Tb and just loops in the repair mode. When I force the boot of the ssd I get Win 7 now.The ssd had Win 10 on it and worked find then it down graded to Win 7.

[visruth]

So it is not fault of changing boot order.

It is something to do with how OS is installed in both drive I suspect.

Windows 7 installation needs to disable secure boot, enable legacy and installed by booting from non-UEFI bootable media. Is this how it is installed?
Windows 10 mar have been installed from UEFI bootable media.

So you've to reinstall Windows 10 from non-UEFI bootable media.

[tinkerstoys]

Windows 10 was installed from the disks that HP sold with the laptop and installed by the tecks at West Wood Computers where I bought this unit on the ssd drive.

[visruth]

If Windows 10 was installed using HP recovery discs, then it is UEFI bootable.

As you can see, Windows 7 got installed in legacy non-UEFI mode.

Ask the tecks at West Wood Computers to reinstall Windows both in same format.

You can check in your BIOS, that whether secure boot is disabled and legacy enabled?

[tinkerstoys]

But what caused the Win 10 to be replaced with Win 7 on the ssd? Win 7 files are on the platter drive but was not installed. How did the Win 10 os get replaced with the Win 7 os on the ssd?

[visruth]

That I've no idea. Contact the technician who installed this for you.