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Windows 7: UEFI-install from USB don't work

07 Nov 2012   #11

Windows 7 Pro X64 SP1

Quote   Quote: Originally Posted by Burgurne View Post
I Can't copy win7 installation on USB-drive when it is fat32. The Install.wim file is way to big for this.
But yes, my USB was formatted with NTFS, so it might be this that stops me.

I am aware of the bootmenu from BIOS where there are 2 versions of booting my USB-drive, one "normal" and one UEFI. But I don't know how to put windows install-files on a fat32-formatted USB-key. Is there a solution to this also?
That's unexpected. Copying the contents of the .iso to the FAT32 key drive is exactly what I did.

Fat32 is supposed to support single files up to 4GB in size.

My System SpecsSystem Spec
27 Apr 2014   #12

Windows 8.1 Pro 64bit

Tried Installing Windows 8.1 Heavier Edition and this worked. It would also work for any Windows 7 or 8- 8.1 Operating Systems.
>First create a new folder called wim on the C drive.
>Extract everything from the .Iso file to a folder anywhere on your computer such as Desktop.
>Copy the install.wim to the wim folder you made on c drive. c:\wim
>Use this command to split your install.wim
in an elevated Command Prompt.

Dism /Split-Image /ImageFile:c:\wim\install.wim /SWMFile:c:\wim\install.swm /FileSize:2500

>Then put the new install.wim files back into your folder that you extracted your iso from, and delete the original.
>Lastly,Format your USB and insert all of your files into it.
Boot : D

I have no idea if it is due to Fat32 not allowing files up to more than 4 gigs, but I do know this.You can boot from a USB if you just copy the All of the files from the CD or image to the USB and boot from it.
Good Luck.

Also it does say that you can not split Windows 8 or 8.1 install.wim files in it, but I guess Microsoft was lying lol
My System SpecsSystem Spec

 UEFI-install from USB don't work

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