tutasync.blogg.se - No boot sector on usb device

tar file and unpack it, they're in the target folder. Max.USB size is 32GB.Create a USB and the LE install files are in the boot partition of the USB, or grab the update. create a row after every 16 // columns so that display // looks good if ( 0 = i % 16)įollowing is the display of the boot sector of a USB pendrive. file pointer begins at 0 // boot sector also starts at 0 // so read now. buffer to store the boot sector // only 512 bytes to be read if handle fails if (INVALID_HANDLE_VALUE = hUsb) use sprintf to construct // the path by appending // disk number to \\.\PhysicalDrive

open the disk now by using // the disk number // path format is \\.\PhysicalDriveN // so a buffer of 20 sufficient char diskPath = get the physicaldrive number // and the capacity of the disk if handle fails if (INVALID_HANDLE_VALUE = hVol) scanf used for readability // and simplicity only. for safety we restrict to // USB less than 32 GB so that // accidental access to hdd // can be avoided const int MAX_USB_GB = 32 PROGRAM TESTED ON // WINDOWS 10, 8 and 7 int main()

COMPILE WITH A WINDOWS COMPILER // SUCH AS VISUAL STUDIO C++ 2005 // OR LATER. You will most likely be interested in this article also: C++ Program to write to the boot sector of a USB Pendrive #include cpp file and compiled with a C++ compiler. COMPILE USING Visual Studio C++, Visual C++ Express, any edition, any version The Source Code Non-ASCII characters are printed as a dot.

Next it opens a handle to the USB drive and reads the first 512 bytes and displays in a 32x16 matrix.

If the byte size exceeds 32GB the program exits.

Then the program opens a handle to the USB volume and reads the drive number and the byte size of the USB.

It can work even with an old style floppy, CD and hard disks without any modification.

The program is not restricted to a USB drive.But you can change this limit as per need. For safety reasons, the pendrive must be less than 32GB.The program must be run with administrative access.