| Item | Details | |------|---------| | | 1GB to 8GB (No larger than 32GB for compatibility with legacy boot). | | HP DMI Tool Files | Look for HP_DMI_12XX.rar or a version specific to your model (e.g., DMI236A.exe ). | | Rufus (Freeware) | The most reliable tool for creating DOS-bootable USB drives. | | FreeDOS or MS-DOS image | Rufus can download this automatically. | | Your System’s Original Info | The correct Serial Number (on chassis sticker) and Product Number (e.g., 5CG1234XYZ ). |
DMIFIT.EXE
Creating an is an essential task for technicians and power users who need to update system information like serial numbers, product IDs, or SKU details —especially after a motherboard replacement. This "Product Information Not Valid" error is a common BIOS issue that can only be resolved by rewriting the Desktop Management Interface (DMI) data. What is the HP DMI Tool? hp dmi tool bootable usb
Newer HP systems (2020+ models like ProBook 450 G8, Elite Dragonfly) no longer support legacy BIOS boot. For these, you need a running the HP UEFI DMI Tool . | Item | Details | |------|---------| | |
If you have AUTOEXEC.bat – the tool may start automatically. If not, type: | | FreeDOS or MS-DOS image | Rufus
The second step is the formatting process. Using the utility, the technician formats the USB drive. The critical step here is selecting the correct bootable file system. For older DMI tools, FreeDOS is the required environment. In the utility, the user must select "FreeDOS" as the bootable disk image or target system. Once applied, the USB drive becomes a bootable FreeDOS drive.