I saw your message zimmy and I tried with NVDA.
With Win10pese x64, I have the same results as JFX, no problem here to install windows 10 64-bits
But with x86 to install win10 x86, I reproduce your problem with the same COM message. I do not know more
I can get around by closing NVDA on the Install screen, after the language selection +next. Than, after 2, 3 seconds, we can restart NVDA with Win key to get the Menu, shortcuts.
Also, I know that you know, you have the great WinNTSetup, ready to use, with a cmd line shortcut, it should be quite easy to use for blind peoples.
Do you really need a Windows 10 32 bits installation ? except some tablets, almost all PCs are 64-bits now.
In Nvda log, I have this, seems related with the COM error:
IO - speech.speak (00:56:14):
Speaking [LangChangeCommand ('fr_FR'), u'Fran\xe7ais']
DEBUGWARNING - RPC process 328 (setup.exe) (00:56:14):
Thread 2460, build\x86\remote\ia2Support.cpp, installIA2Support, 86:
Error registering class object, code -2147221008
Perhaps, you can send the log here Win10PEx86_NVDA_Setup_Win10x86.zip
(3.84 kB - downloaded 65 times.)
and send it to the English users' mailing List https://github.com/nvaccess/nvda-community/wiki/Connect
To join the users' list, send a blank email to: firstname.lastname@example.org with the word "subscribe" in the subject line.
they can probably help to understand the IA2 support error
There is a new Nvda version, 2015.4. I will update the plugin when I have some free time.
To take it, use "Custom version from this folder (with your settings)" button with Nvda portable install and your settings.