[ISSUE] While using UEFI mode, Windows 11 new v24H2 installer encountered an unexpected error 0x80070001-0x4002f during installation

[SM-03]

Official FAQ

• I have checked the official FAQ.

Ventoy Version

1.0.99

What about latest release

Yes. I have tried the latest release, but the bug still exist.

Try alternative boot mode

Yes. I have tried them, but the bug still exist.

BIOS Mode

UEFI Mode

Partition Style

GPT

Disk Capacity

16GB

Disk Manufacturer

SanDisk

Image file checksum (if applicable)

None

Image file download link (if applicable)

https://uupdump.net/

What happened?

Problem with the new Windows 11 24H2 installer with Ventoy

I tried latest ventoy 1.0.99 with FAT, Ex-FAT & NTFS formatted. Secure boot enabled, partition style GPT, while trying to clean install Windows 11 Pro 26100.863 24H2 x64, it gave me this error while processing to the disk selection screen

Windows installation encountered an unexpected error error code 0x80070001-0x4002f

Image here

Then I read some discussion here in this thread & select the MBR partition in ventoy & re-format the pen drive, then this issue doesn't occur & the installer processed further to the next disk selection screen

Then I tried Rufus' latest version v4.5 & using the default Rufus combination (GPT+UEFI+NTFS) to make the SAME PD bootable with the same ISO I tried earlier, & with Rufus, there's absolutely no issue with GPT partitioning.

Now I can't use MBR as all of my disks are GPT formatted & I don't wanna convert/change them to the old MBR style
& the problem is, I can't use Rufus either, as the only reason I use Ventoy, is the ability to handle/retain multiple ISOs at the same time

therefore, I opened this issue here & requesting to solve it ASAP.
TIA.

[SM-03]

Hi @ventoy
is there any fix coming for this?

[catherinedoyel]

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

[tattwamashi]

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

well the same issue is present in window11 iot ltsc. basically with any windows 11 iso that has the new installation UI is suffering

[SM-03]

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

@catherinedoyel
24H2 is already released internally via the release preview channel & the same will be the GA (formerly called RTM) on Sep/Pct later this year, I don't really think that MSFT gonna change anything on their end.

And UUP-made ISO is the same/identical like the MSFT official release ISO as UUP downloads all the resources from the MSFT server so internally every file will be the same. No difference. UUP give you more freedom to customise the ISO as per your own choice & preferences.

And at the end, like I wrote, in Rufus, there's no problem with this new 24H2 installer with GPT formatted USB driver but it's causing the issue with ventoy only so there must be a way to solve this.

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

well the same issue is present in window11 iot ltsc. basically with any windows 11 iso that has the new installation UI is suffering

@ElectroPerf
you must be talking about 24H2 W11 IoT ISO, right?

[tattwamashi]

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

@catherinedoyel 24H2 is already released internally via the release preview channel & the same will be the GA (formerly called RTM) on Sep/Pct later this year, I don't really think that MSFT gonna change anything on their end.

And UUP-made ISO is the same/identical like the MSFT official release ISO as UUP downloads all the resources from the MSFT server so internally every file will be the same. No difference. UUP give you more freedom to customise the ISO as per your own choice & preferences.

And at the end, like I wrote, in Rufus, there's no problem with this new 24H2 installer with GPT formatted USB driver but it's causing the issue with ventoy only so there must be a way to solve this.

Until 24H2 goes gold I am not sure if it can be solved as a change might be implemented, but then Microsoft may change again. The way ISO is made on UUPdump is not the same as the one Microsoft puts on their website. The current release you get from Microsoft website is Win11_23H2_English_x64v2.iso from December 2023, does this cause the problem too?

well the same issue is present in window11 iot ltsc. basically with any windows 11 iso that has the new installation UI is suffering

@ElectroPerf you must be talking about 24H2 W11 IoT ISO, right?

Yes that's what i am talking about.

[tattwamashi]

@ventoy you must either try out the release preview builds or the win11 iot ltsc builds if you wanna go with untouched iso from Microsoft's side, but also with uup dump iso, it's the same issue

[zept888]

I was installing one of the win11 lstc ISOs and can confirm on this issue.

switching from GPT to MBR solved the issue for me. if what @SM-03 says is true about Rufus having no problems installing ISO with GPT, ventoy has some fault on its side.

[SM-03]

@zept888
Whatever I said about Rufus is true indeed. You can try it for yourself.

[TheColin21]

Issue occurs for me too on a 256GB Kingston stick with two different Win 11 24H2 ISOs

[SM-03]

Issue occurs for me too on a 256GB Kingston stick with two different Win 11 24H2 ISOs

so, what workaround did you try? Formatting with MBR worked with ventoy or you used Rufus for 24H2?

[KCHARRO]

After select language….

Just click on the blue letters “Use old installation program”