Solved Disk partitioning prior to clean install of Win 11

I need to do a clean install of Win11 Pro Retail on new drives. Would like to partition the drives prior to install with 2 partitions - OS and Data. Earlier versions of Windows allowed you to partition prior to the OS install - is this still available in Win11 or do I need to do that separately?

TIA

yes

Which partitioning software would you suggest.

None is needed.

For some reason, the attachment was not visible. So I presume you can configure the size of the OS partition after you click Next? The pic shows only the full 80GB drive as a single partition.

that 80GB was just an example. You can delete all the partitions and then create two new ones for OS and Data - it's really easy.

Thanks

Windows should be pointed to install on an unallocated space and it should be on the beginning of the drive.
- Create first the Windows (EFI, MSR, C: and Recovery) partition. 80G is a good size for windows and programs.
- Create the Data partition or partitions
- Delete the first partition and point to install on the unallocated space created and proceed

On BIOS
Set Disk mode to AHCI, not RAID
Select OS mode = UEFI
Disable fast boot and secure boot (you can turn it on after installation)

Windows can be installed in two ways: Legacy-MBR or UEFI-GPT
To install as Legacy-MBR you must boot the installation drive as Legacy
To install as UEFI-GPT you must boot the installation drive as UEFI.

As you have a UEFI BIOS, you should install as UEFI-GPT
Detach any other drives (SATA or Power cable) from the MB.

During POST, press F8 to launch the boot menu. You will see two options for the USB drive. USB UEFI (Name) and USB (Name). Select USB UEFI (Name) to install as UEFI-GPT.
Select the unallocated space and then proceed.
Don't enable updates or connect to the internet during installation.
If you want to use a local account What is "oobe\bypassnro"