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Issues with windows vista/7 ISO's with ventoy - johnson - 08-26-2025

Hi,

I apologise if this went in the wrong forum.

Recently I tried ventoy to hopefully not have gazilion drives just to install each OS. I put the following ISOs on it which are known good:
windows 7 home premium x64
vista x64 all versions sp1
vista x86 all versions sp1
windows 7 pro x64

After I got into the boot menu I selected vista x86 and I got blinking underscore when I did normal boot. So I tried wimboot mode but that resulted in the setup not being able to load some disk driver.

I then selected vista x64 and it seemed to go smoothly until I got to the partition creation wizard. After it I got an error "setup couldn't find an valid partition table".
I also couldn't boot any ISO in normal mode. All had to be booted using wimboot mode.

I lastly tried the win 7 home premium x64 and I got an windows asking me to point to a driver for the USB/CD install disk.


Hardware I used:
Known good 32GB USB stick (no problems if I mount any ISO using rufus)
NTT model 8581 Windows Vista era laptop (boots normally with USBs which only have one ISO written on it).

Any ideas how can I fix it? This laptop doesn't support secure boot and the Ventoy USB drive was made without secure boot option.