Windows 10: how to make an iso file?

so I want to make an iso file but I don't trust a lot of 3rd party tools and don't have any way to create an iso file. can I have some help?

:)

 

wont boot into ISO file?

hm I used nero and put the iso on there like anything else
ill try your suggestions with the .nrg file I no longer have the .iso (threw away)
i was just curious

 

Need ISO maker

Um, feel free to correct me if I'm wrong, but isn't UDF the DVD format?

"The name ISO is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image might also contain a UDF file system."

http://en.wikipedia.org/wiki/ISO_image

 

Bootable USB with ISO - What am I missing?

Have you copied all the files from the ISO to the flash drive? I can't see that step.


After step 10. (after formatting and making it the active partition)

Copy files from the ISO to flash drive.

Open CMD as administrator.

navigate to the flash drive, lets call it drive Z and type in the following commands.
Z:
cd boot
bootsect.exe /nt60 z:
exit


Then try again.