Hi Nitish,
Thank you for posting in the Q&A forum.
Please understand that UEFI requires booting from a GPT disk so you cannot see your SSD which uses MBR in your boot devices. It is recommended to perform a clean install of Windows 11 after changing the boot mode to UEFI so that your SSD will be automatically set to GPT.
Or you can give a try to MBR2GPT to change your disk from MBR to GPT. The tool runs from a Windows Preinstallation Environment (Windows PE) command prompt, but can also be run from the full Windows operating system (OS) by using the /allowFullOS
option.
https://learn.microsoft.com/en-us/windows/deployment/mbr-to-gpt
https://www.windowscentral.com/how-convert-mbr-disk-gpt-move-bios-uefi-windows-10
Make sure you have backed up your data before doing anything.
Best Regards,
Ian Xue
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