I needed several tries to install a Windows 10 on an empty DELL Latitude 7490. After giving up with a self created USB stick I bought an installation DVD and lo and behold Windows was installed. Or I thought so.
To be able to boot from an external DVD I changed the settings in the BIOS.
Now I have the situation, that the laptop boots, when the external DVD with the installation DVD is plugged in, but not when it is plugged out.
When I start the Laptop with F12 I get the following menu:
Boot mode is set to: LEGACY EXTERNAL DEVICES: Secure Boot:Off
Onboard NIC
UEFI Boot:
**Onboard NIC (IPV4)**
Onboard NIC (IPV6)
OTHER OPTIONS:
BIOS Setup
BIOS Flash Update
Diagnostics
Intel Management Engine BIOS Extension
change Boot Mode Settings
When I go into the BIOS Settings to the “Boot Sequence” menu item I have :
- Onboard NIC
- CD/DVD/CD-RW Drive
- USB Storage Device
- Diskette drive
With “Boot List Option” I have activated “Legacy External devices”, if I choose “UEFI” I have only the 2 Onboard NIC choices above.
However what I don’t have is a hard drive.
How can I boot from my laptop’s hard drive?
I am quite sure that I installed something, because when Windows starts it shows Firefox and Chrome, which I installed manually.
