Windows 11 now has an official arm64 ISO Download

[geerlingguy]

If you visit https://www.microsoft.com/en-us/software-download/windows11 — there's now a link for Arm:

Windows 11 ISOs for Arm64 devices are available here.

I am downloading an ISO from that page and will see if this works instead of the UUP Dump method in the README (which is a little more involved).

The ISO is 5.46 GB and the download seems throttled to 10.5 MB/sec, so I'll have to test it out in the morning.

[Knight1]

The Signature and Modified Dates from most of the Files are from April 1. But some Files were edited on September 6.

<VERSION>
<MAJOR>10</MAJOR>
<MINOR>0</MINOR>
<BUILD>26100</BUILD>
<SPBUILD>1742</SPBUILD>
<SPLEVEL>0</SPLEVEL>
<BRANCH>ge_release</BRANCH>
</VERSION>

[geerlingguy]

@Knight1 - Seeing how they separated out the arm64 ISO to a separate page instead of just an x86/arm64 selector on the main page... I kinda worry they don't have a fully automated / integrated process for building the arm64 OS. No idea what happens behind the scenes, but I do worry the arm64 ISO could be treated as a 2nd class citizen (kinda like WoA is in general...).

[rohmishra]

Is it even downloadable? might be my connection but the download has failed twice for me.

[Knight1]

Given that we only got the ISO 7 Months after they released it to there Subscription Users. Proxmox still does not make an arm64 Version. I still wish that Ampere would release a CPU for a Nuc Variant with like 4/8/16 Cores. I like my Intel Nuc with the m.2 and the DDR4 Slots but it is amd64 but Pi got pricy compared to my Intel Nuc.

I got the ISO. But it won't boot with Tiano Core on a Netcup VPS.

[geerlingguy]

I installed Rufus and am using it to write the ISO to a USB drive, with all the options to strip Secure Boot, etc. (following the directions in this project's README). @Knight1 is that VPS a virtualized instance running on Ampere hardware? Or is it a direct baremetal install? (I'm not familiar with Netcup.)

[geerlingguy]

Hmm... Rufus was "Unable to patch/setup files for boot."

Trying with it anyway, the UEFI menu shows:

[FAIL] Could not locate 'efi\boot\bootaa64.efi': [14] Not Found

[geerlingguy]

Huh... getting the same error after downloading the latest Insider Preview build from UUP Dump and preparing it following the README. What am I doing wrong?

Edit: I just noticed Rufus was defaulting to Fat32 instead of NTFS... that might've been the issue. Trying again!

Edit 2: Still getting the failure... but I popped out the UUP Dump-generated ISO after that fail, and plugged it into the Ampere Dev Workstation, and it's booting from it now. Testing the install...

Edit 3: After entering my product key, I get:

This PC doesn't currently meet Windows 11 system requirements. Here's why:

The PC must support TPM 2.0.

So apparently Rufus does need to fix up the TPM requirement, drat!

[geerlingguy]

I was able to use a guide to bypass the TPM 2.0 requirement using regedit within the installer. It is Installing Windows 11 now.

Note: This is using the UUP Dump download, not Microsoft's arm64 download :(

Edit: Windows 11 installed, and works great, using the UUP Dump method—though need to do the regedit trick I linked above. I can't get the download from Microsoft's arm64 download page to work.

[joespeed]

@geerlingguy let's get you the $25 TPM 2.0 module.
https://www.newegg.com/asrock-rack-tpm-spi/p/N82E16816775069

[geerlingguy]

@joespeed - That'd be great, might be able to take some steps out of the mix.

[Knight1]

Netcup is using Ampere but it is virtualized.

[geerlingguy]

I can confirm, with the TPM 2.0 module, the Windows install 'Just Works™', no extra registry steps required. See: geerlingguy/sbc-reviews#53 (comment)