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  • Is this a dedicated Sony recovery USB you are using? The Sony may require some special formatting not present on a generic recovery disk.

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  • That laptop originally came with Windows 8 and it could be set to boot from a UEFI prepared USB or a Legacy prepared one. Your USB needs to be the right sort. Put your iso on a Ventoy prepared one https://www.ventoy.net/en/index.html

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  • Or use windows media creation tool to create the USB. Or use Rufus, and make sure that the disc/USB is set up as EFI.

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  • Thank you all for the responses.

    No I am not using a Sony Recovery USB and the USB being used was actually created using the Windows Media Creation Tool.

    I am curious about Ventoy as it appears to have wider potential. I have periodically considered if there is a way to use a single USB drive for OS installation software. While I the priority is the Vaio at the moment, I will share my results when I test it in the wider scheme of my operations.

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  • Follow up. Tried using Ventoy - downloaded and ran the exe then copied the ISO to the USB drive.

    No joy but I am wondering if I am doing the procedure correctly?

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  • This appears to be a convertible tablet/laptop with removable keyboard.

    I like to use a USB Keyboard on these to eliminate potential detection issues with the dock keyboard.

    In any event, I don't think you are getting to the boot menu.  Here is some information I found for Sony's in general.

    But you should be able to stop at a menu and choose the boot device.

    What is the key for boot menu in Sony VAIO?
    The Sony VAIO boot menu key may vary depending on different models. But you can try the Assist button, F11, Esc, and F10 keys. If these keys don't work, you can also try F1, F2, and F3.
    How do I boot from USB on Sony VAIO?
    Connect a bootable USB drive to the Sony VAIO laptop.Power off the PC and then press the Assist button to enter the boot menu window. Or restart the PC and then press the boot menu key like F11, Esc, or F10 to open the boot menu window.Choose Start from media (USB device/optical disc) option.

    And Rufus latest version has the ability to download many installation .iso files.

    Make sure you are creating an EFI/UEFI boot stick.  The documentation indicates it came with Windows 8, so almost assuredly EFI Secure boot as opposed to MBR.

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  • You can add as many iso as you can fit on the Ventoy USB stick and it works for both Legacy and UEFI. You can always try your Ventoy USB stick on another computer to make sure the iso's are in the menu and if you have a Linux one let it boot as it will work live from the USB stick.
    Strange that it is not seeing either the Windows Media Created USB stick or the Ventoy USB. Can you set your BIOS to default and make sure secure boot is not activated. Also, try different USB ports.

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  • Went through the information provided by both of you and still no joy.

    I doubt the problem is with the USB drive created as I used the information in both posts to create the drive and tested it in another machine each time before trying it on the Vaio. Both methods came back with Operating System Not Found. So it is back to the searching for a solution.

    In the specific case of Ventoy, it is giving me some interesting ideas. So far copied a Windows ISO and Ubuntu ISO and saw where I could now choose which of them to install. Kool stuff and I am going to see how far I can take it and report back. If it delivers what I figure it will then I will certainly spread the word of it among my associates and encourage them to donate to the project.

    This Vaio problem has not been a total waste of time as I have gotten what could be a great addition to my tool kit.

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  • Yes. Ventoy with different Distros on it is a very useful tool. As well as Windows iso's you can have all the Linux ones as well. Apart from Ubuntu you can have Clonezilla, System Rescue https://www.system-rescue.org/ which has lots of utilities in it, etc, etc.

    Thinking a little more about your issue. In the past, I have seen instances where some BIOS's don't like some makes of USBs and some BIOS's like to have the boot flag set before it recognises the medium as bootable.

    You could also try a network PXE boot which should work.

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  • I am not sure about this device having a Network Boot option and I am starting to suspect that the storage may either be damaged or that the device might be a victim of a UEFI infection. Was reading ESET (https://www.eset.com/int/uefi-rootkit-cyber-attack-discovered/) about this problem affecting a large number of devices across many brands. Having moved from the conventional BIOS to this EFI system, it turns out that it has now opened the door for a few more security issues. I guess there can never be a dull day on the farm.

    In respect of the Ventoy and other suggested tool, THANKS for that. Had a closer look at Ventoy and will certainly be using it to concolidate and organise my USB drives. I am actually going to open a topic under General Software asking for other suggestions that can make my tool kit better AND I will be mentioning that (if you do not mind) you opened my eyes to these.

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