Creating a Bootable USB Drive from an ISO File is Not Possible

The issue lies in the fact that certain security solutions view USB Flash Drive access to modify partition data or reformat as a potential indication of a malware attack, and fail to include any measures for authorized access, such as those from Rufus or Win32 disk imager (although they might whitelist it to prevent errors). The Linux ISOs that you have utilized previously have been specifically created with isohybrid to enable their bootability as both fixed disk images and CD images.


Solution 1:

The ISO-9660 CD image is indicated as capable of booting, but its boot mechanism differs from that of typical disks such as HDDs or USBs. The boot code compatible with BIOS is not found in sector 0, and neither is the partition table compatible with UEFI.

In the past, the Linux ISOs you have utilized were made bootable for both CD images and fixed disk images through the use of isohybrid. On the other hand, Windows ISOs are only intended for CDs/DVDs and as such, require supplementary tools for other formats.

In theory, UEFI installation can be done easily by extracting all files onto a disk that is formatted with FAT32 and using DISM to split the install.wim if required. However, for BIOS installation, you will require ms-sys to write bootsectors that are compatible with Windows.


Solution 2:


A software exists that can generate a bootable disk in accordance with the ISO.

In case the item is not available in your repository, you can obtain it through:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt update
sudo apt install woeusb

To properly prepare the target disk, formatting is required in the following manner:

To format the USB in the

Disks

application, first select it from the left panel. Then, click on the hamburger icon and choose the “Format disk” option. From there, select “Don’t overwrite existing data (Quick)” and “Compatible with all systems and devices (MBR/DOS)”. Finally, click the “Format” button.

Upon opening WoeUSB, the connected USB drive will be automatically detected and selected. Then, navigate to the Windows 10 ISO image and choose it. Finally, click the “Install” button to initiate the preparation of the
bootable windows 10 usb
drive.

In case you encounter the error message stating that the target device is busy, requesting you to unmount all mounted partitions, you can resolve it by going to Disks and selecting the USB drive. Then, click on the icon that says “Unmount selected partition” and restart WoeUSB.

The article provides additional details along with screenshots on creating a Windows 10 bootable USB on Linux.

Frequently Asked Questions

Posted in Usb