Error when trying to use WinToUSB to install Windows 10 onto a pendrive

[admin]

Hello,

I wanted to install Windows on an USB drive so that I can use it on different computers. I heard about WinToUSB and gave it a try. At about seventy percent (with three retries) I get an error "Copy file failed.(0x0000008000B40000)". I am using Windows 10 Home Premium, trying to install Windows 10 Ultimate onto a Kingston DataTraveller 3.0 (USB 3.0).

What can I do? I tried three times.

I appreciate any help.

I am NOT talking about installing Windows FROM a pendrive but TO a pendrive

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