Download All BackTrack. You can choose to either download a VMware image or a bootable ISO image.
BackTrack 4 R2 Release ISOLast Update: 22.11.2010 Name:: bt4-r2.iso Size: 2000 MB MD5: 9a94caa0e980a7331e9abc1d4c42c9a9
BackTrack 4 R2 Release VMware ImageLast Update: 22.11.2010 Name:: bt4-r2-vm.tar.bz2 Size: 2400 MB MD5: 95c8b727d01b96b6df84381065cd9da6
BackTrack 4 R1 Release VMware ImageLast Update: 08.05.2010 Name:: bt4-r1-vm.tar.bz2 Size: 2500MB MD5: b54a345a0619817c893183908d0957e4
BackTrack 4 Final Release ISOLast Update: 11.01.2010 Name:: bt4-final.iso Size: 1570 MB MD5: af139d2a085978618dc53cabc67b9269
BackTrack 4 Final Release VMWare ImageLast Update: 11.01.2010 Name:: bt4-final-vm.zip Size: 2000 MB MD5: 733b47fad1d56d31bc63c16b3706a11c
BackTrack 4 Pre Release ISOLast Update: 19.06.2009 Name:: bt4-pre-final.iso Size: 1390 MB MD5: b0485da6194d75b30cda282ceb629654
BackTrack 4 Beta Release ISOLast Update: 11.02.2009 Name:: bt4-beta.iso Size: 854 MB MD5: 7d1eb7f4748759e9735fee1b8a17c1d8
BackTrack 4 Beta Release VMWare ImageLast Update: 11.02.2009 Name: bt4-beta-vm-6.5.1.rar Size: 1 GB MD5: 38acdcbaf6c73d7c55180dfea8641e5d
BackTrack 3 Final Release ISOLast Update: 11.02.2009 Name:: bt3-final.iso Size: 728 MB MD5: f79cbfbcd25147df32f5f6dfa287c2d9
Verifying the Download in Linux
Once you have downloaded BackTrack, you should check the validity of the downloaded file using md5sum. For example:
BackTrack 5 has not yet been released, this is a placeholder.
root@bt:~# md5sum bt4-r2.iso 9a94caa0e980a7331e9abc1d4c42c9a9 bt4-r2.iso root@bt:~#
- BT4-R2 ISO md5sum: 9a94caa0e980a7331e9abc1d4c42c9a9
- BT4-R2 VMware Image md5sum: 95c8b727d01b96b6df84381065cd9da6
Verifying the Download in Windows
download and install hashcalc from
Its a free tool
Open hashcalc Uncheck all the checkboxes except md5
Change data format to file
In the data box on the right hand side is a button with 3 dots, click it and navigate to where you downloaded your .iso or .bz2 and select it, click open.
Now press calculate
After a few seconds (or more depending on your computer speed) there will be a string next to the word md5, this is the md5 of your file.
Compare your md5 to the md5 hash on the download page.
If they are the same then your iso or bz2 is good, if not your file is corrupt and you need to download it again.
Verifying the Download in OSX
Open up the Console and type md5 and a space, then drag 'n' drop the image to the Console window.
Press enter and wait.
Then you should see an output something like this:
MD5 (~/Downloads/bt4-r2.iso) = 9a94caa0e980a7331e9abc1d4c42c9a9
Please remember that the most common problems arise from either a md5sum mismatch and in the case of a DVD, burning too fast, using low quality media or burning the iso as a file instead of as a disc image.
The ISO image is bootable, meaning that you will need to either burn the iso to a DVD or transfer it to a USB stick. Once you have done this, you will then be able to boot your computer into the BackTrack Live environment. From this Live environment you can continue to use BackTrack or install it to your HDD using one of the installation guides listed on the Installation page.