لا شكر على و اجب اختي
و اهلا و سهلا في فريق المهندسين العرب
اي اصدار و ندوز تستخدمين ؟
Making the USB flash drive look like a floppy
Flash drives can be made bootable on a Win98 platform using SYS.EXE. From a command prompt (DOS window) type "sys drive:" where drive is the letter of the flash drive as recognized in "My Computer". When this is done, the PC indicates that the system files were transferred after the process is completed. At this point, the USB flash disk drive is bootable.
You can also boot to a USB hard disk drive or floppy disk drive using DOS. If the computer's BIOS is properly configured, the USB flash drive will be recognized as a floppy drive from DOS. Using the "sys drive:" from DOS will also create a bootable flash drive. Note that in addition to Microsoft or IBM versions of DOS, FreeDOS can also be used. As the name implies, it is open source and there is no charge to use the operating system.
Note that SYS.EXE does not exist on Windows 2000 or Windows XP-based computer systems. Despite the advances in Windows 2000 and XP in mounting USB Flash drives without preloading drivers, these platforms cannot create a bootable drive. Some USB Flash device manufacturers support making bootable devices using these platforms by copying files from a bootable floppy disk, but you will need a floppy made bootable from a Windows-based computer system prior to working with the Windows 2000-based computer system.