I know that, in order to install Windows 7 on my windows 8.1 laptop, I must disable secure boot then use the diskpart command to convert my USB disk to GPT and format it as fat32.
I made every thing and succeeded...
When I tried to make this again, with a new copy of Windows 7 that is greater than 4 GB, I couldn't copy the files to my USB driver because fat32 does not support files larger than 4 GB.
What can I do to make my laptop accept NTFS file system to install this version of Windows ?