Volume license editions often use an uncompressed install.wim file rather than a heavily compressed consumer install.esd file. This lets IT admins inject custom drivers, languages, or corporate software policies directly into the image before pushing it out to corporate workstations. Security and Best Practices for System Admins
Use diskutil in Terminal or Disk Utility to format a USB drive (at least 8GB-16GB) to FAT32/MS-DOS with Master Boot Record (MBR).
Always obtain the latest drivers from your hardware manufacturer's official support website (e.g., Dell, HP, Lenovo, AMD, NVIDIA).
Because the install.wim file is usually over 4GB, it cannot be copied to FAT32. You must use wimlib-imagex to split it: wimlib-imagex split /path/to/CCCOMA_X64FRE_EN-US_DV9/sources/install.wim /Volumes/USB_DRIVE/sources/install.swm 3800 .
The DV9 image format often contains several editions of Windows, allowing the user to choose during installation. ces-x64frev-en-us-dv9
2.3 "frev"
You will generally encounter labels like CES_X64FREV when managing bootable partitions via advanced system tools. For example, if you are configuring a custom dual-boot environment using an alternate boot manager like the GNU GRUB Menu , the system will display this exact code under disk partition labels to verify where your Windows installation media resides.
Because it is tagged as an x64 architecture, the media contains specific boot loaders ( bootmgfw.efi ) designed for UEFI or legacy BIOS modern motherboards. It does not support newer, specialized processors like Arm64EC for Windows 11 apps natively, nor does it support obsolete 32-bit hardware.
: Stands for "Version" or indicates a specific update milestone in the Windows lifecycle. Volume license editions often use an uncompressed install
is straightforward — docs, tools, error messages in American English. But DV9 is the real signal: version 9 means earlier versions (DV1..DV8) likely failed against new mitigations (e.g., CET, Shadow Stack, PKS).
Simply go to This PC , right-click on the CCCOMA_X64FRE_EN-US_DV9 drive, and select Eject . Troubleshooting: Missing Drivers
Microsoft uses a strict syntax for naming its operating system deployment media. Breaking down each component of the phrase reveals its exact engineering specifications:
To understand what CES-X64FREV-EN-US-DV9 signifies, you can break it down into its distinct syntax components: Always obtain the latest drivers from your hardware
If it is assigned to a physical flash drive, removing it requires standard hardware ejection. Locate the USB flash drive in . Right-click the drive icon. Click Eject . Unplug the USB stick from your physical machine. Method 3: Renaming the Drive
You often cannot delete the icon because the ISO is "mounted" as a virtual drive. To remove it, you must right-click the drive in Windows Explorer and select Eject .
Type a clearer title (e.g., "Windows 10 Install" or "Flash Drive"). Press . What to Do If It Won't Eject
: Indicates that the native operating system language is US English .
Generally indicates the build branch (e.g., Client Evaluation System or similar). x64: 64-bit Architecture. FRE: Free Build (Retail/Release version). en-us: English - United States. dv9: DVD-9 ISO image.