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C:\Users\Administrator\Desktop\os\os>dd.exe /?
rawwrite dd for windows version 0.6beta3.
Written by John Newbigin <jn@it.swin.edu.au>
This program is covered by terms of the GPL Version 2.

Unknown command /?
dd [bs=SIZE] [count=BLOCKS] [if=FILE] [of=FILE] [seek=BLOCKS] [skip=BLOCKS] [--size] [--list] [--progress]
SIZE and BLOCKS may have one of the following suffix:
k = 1024
M = 1048576
G = 1073741824
default block size (bs) is 512 bytes
skip specifies the starting offset of the input file (if)
seek specifies the starting offset of the output file (of)

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C:\Users\Administrator\Desktop\os\os>dd --list
rawwrite dd for windows version 0.6beta3.
Written by John Newbigin <jn@it.swin.edu.au>
This program is covered by terms of the GPL Version 2.

Win32 Available Volume Information
\\.\Volume{4102ffc6-797c-11e6-afa5-806e6f6e6963}\
link to \\?\Device\HarddiskVolume1
fixed media
Mounted on \\.\c:

\\.\Volume{4102ffc8-797c-11e6-afa5-806e6f6e6963}\
link to \\?\Device\HarddiskVolume3
fixed media
Mounted on \\.\e:

\\.\Volume{b1cc0dd3-5bf5-4b9f-b8ff-c791d9390873}\
link to \\?\Device\HarddiskVolume6
fixed media
Mounted on \\.\g:

\\.\Volume{7441521c-0d1b-4d4e-906b-022bcf9a70cf}\
link to \\?\Device\HarddiskVolume7
fixed media
Mounted on \\.\h:

\\.\Volume{4102ffc7-797c-11e6-afa5-806e6f6e6963}\
link to \\?\Device\HarddiskVolume2
fixed media
Mounted on \\.\d:

\\.\Volume{4102ffc9-797c-11e6-afa5-806e6f6e6963}\
link to \\?\Device\HarddiskVolume4
fixed media
Mounted on \\.\f:

NT Block Device Objects
\\?\Device\Harddisk0\Partition0
link to \\?\Device\Harddisk0\DR0
Fixed hard disk media. Block size = 512
size is 250059350016 bytes
\\?\Device\Harddisk0\Partition1
link to \\?\Device\HarddiskVolume1
\\?\Device\Harddisk0\Partition2
link to \\?\Device\HarddiskVolume2
\\?\Device\Harddisk1\Partition0
link to \\?\Device\Harddisk1\DR1
Fixed hard disk media. Block size = 512
size is 2000398934016 bytes
\\?\Device\Harddisk1\Partition1
link to \\?\Device\HarddiskVolume3
Fixed hard disk media. Block size = 512
size is 107380998144 bytes
\\?\Device\Harddisk1\Partition2
link to \\?\Device\HarddiskVolume4
\\?\Device\Harddisk2\Partition0
link to \\?\Device\Harddisk2\DR2
Fixed hard disk media. Block size = 512
size is 4000787030016 bytes
\\?\Device\Harddisk2\Partition1
link to \\?\Device\HarddiskVolume5
Fixed hard disk media. Block size = 512
size is 134217728 bytes
\\?\Device\Harddisk2\Partition2
link to \\?\Device\HarddiskVolume6
Fixed hard disk media. Block size = 512
size is 2097152000000 bytes
\\?\Device\Harddisk2\Partition3
link to \\?\Device\HarddiskVolume7

Virtual input devices
/dev/zero (null data)
/dev/random (pseudo-random data)
- (standard input)

Virtual output devices
- (standard output)
/dev/null (discard the data)

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Make an image of a floppy disk:
dd if=\\.\a: of=c:\temp\disk1.img bs=1440k

Write the image back to a floppy disk:
dd if=c:\temp\disk1.img of=\\.\a: bs=1440k

Rip an .iso from a CD
dd if=\\?\Device\CdRom0 of=c:\temp\disc1.iso bs=1M

Read a partition from a USB memory device
dd if=\\.\Volume{c18588c0-02e9-11d8-853f-00902758442b} of=c:\temp\usb1.img bs=1M

Read the entire USB memory device
dd if=\\?\Device\Harddisk1\Partition0 of=c:\temp\usb2.img bs=1M --size --progress

You can write to any file or block device which windows will allow you to write to. You can use the standard \\.\ notation for win32 exported devices or the dd specific \\?\ notation to access windows native devices.

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