Hello guy as always i need your support...
we have a Dell Precision T5810 Arrived with Three disk(2 TB ) Configured with RAID 5. My Boss asked me to install Windws 7 but i have some Issue.
I'm installing Windows 7 with USB Stick, during the installation i need to install the driver to be able to read the disk. After Loading the drive i found 4 partition
Disk 1 Part 1 ESP 500M
Disk 1 Part 2 DIAGS 40GB
Disk 1 Part 3 OS 2 GB
Disk 1 Part 4 UNALLOCATED SPACE 3700 gb
but is impossibile to install WIndows becasue this error:
Windows cannot be installed to the this. The selected disk is of the GPT Partions.
How can i fix and install Windows?
You will need to change the BIOS settings to install Windows 7. Below are some links that will help you get Windows 7 installed.
How to Downgrade from Windows 8 Pro to Windows 7 Professional
How to enable boot from DVD option with UEFI boot mode enabled. (Windows 8, 8.1 & 10)
How to manually reinstall Windows 7 on a Dell computer?
I am not sure if you are using the Dell USB key to install but, information at the link below.Dell Direct USB Key - FAQ
Dell Precision Workstation T5810 System Guide