Hi community!
I am excited to become part of the Framework community with my first Framework laptop.
I received the 13 inch 13 gen 1370p a couple of days ago, and I ordered without the SSD - I bought a 990 PRO separately. I assembled the laptop, and attempted to install Win 11 using a USB 3.2 bootable drive. I ran into issues when I attempted to create a partition - I was getting a cryptic “Failed to create a partition” error message inside of the Windows installer.
To resolve it, I tried going through the repair my PC option of the installer instead, entering CMD and then tried to create a partition using DISKPART tool. I was getting an access denied message, so I tried to clear the read-only attribute, but that didn’t resolve anything.
In an attempt to solve this I created another bootable drive (exactly the same USB 3.2 stick, just a second one I had) with Win 11 and repeated the procedure, but it didn’t help.
I then cleared one of the drives and made it a bootable installer for Windows 10 instead, and then repeated the procedure using DISKPART which succeeded in creating a partition. However, I ran into a problem when I tried to use Win 11 drive to install windows on the newly created partition because the drive was set up to use MBR instead of GPT records, so I had to redo everything, but with a switch to GPT added in the middle.
I am adding the commands I used in DISKPART here in hopes that if someone runs into the same problem they have the solution in one place, but I would love to hear from everybody who knows more on why this would happen - hoping to learn something new 
Procedure:
- Create a bootable Win 10 Installer USB drive
- Boot from the said USB drive and instead of pressing “Install now” choose “Repair” option on the bottom left of the window
- Enter Command prompt and type these commands:
start diskpart
This will show another CMD prompt with DISKPART tool, switch to that one and keep going:
list disk
This will give you a small table showing the SSD (probably as number 0) and the bootable USB drive. For me the SSD was 0 and the rest of the commands will assume the same is true for you, but you might need to edit them for your use case.
select disk 0
clean
convert gpt
create partition primary -size=307200
Size is number of MB, in my case I chose 300GB for the primary partition. If you don’t want to use multiple partitions you can omit the size parameter and the partition will automatically use up the whole available space.
4. Exit the tool and turn off the PC.
5. Create a Windows 11 Installer USB drive and boot to it.
5. Choose “Install now” option and proceed as the wizard leads you. When you arrive at the partition choosing step, select the partition you created in step 3, format it, and continue through the installer. Hopefully this solved your problem and you successfully installed Windows 11. If not feel free to respond to this thread for further help.