USB-boot fail: Windows To Go Creator in Partition Assistant Pro 7.5.1 EFI dir/partition missing.

Hi, I tried making a "Windows To Go" on a SanDisk Ultra Flair 32GB. Since my Installed Windows with programs is much greater than 32GB, I choose iso source, downloaded Windows10_InsiderPreview_Client_x64_en-us_18272.iso, and fed that to the creator. The Wizard completed successfully, but the pen-drive refused to boot. Upon inspection I could see that the pen-drive had neither a EFI partition or a EFI directory.

Please help.
Thanks.

Comments

  • Please try Legacy mode, UEFI is not supported in iso source.
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