Q. How do verify my MD5 checksum of an ISO file under Windows XP? The Linux ISO images downloaded from the net onto Windows XP system.

A. Under Linux or UNIX you can use MD5 checksum command to calculate the MD5 checksum of a file or an ISO image.

Under Windows XP and other Windows operating system you need to use a special program called winMD5Sum. It is a simple open source Windows MD5 checke to calculate the MD5 checksum of a file or an ISO image.

Download winmd5sum

  • You can download the winmd5sum here
  • Install the software

MD5 checksum is one of the most common signature to make sure that a file that you have downloaded is not corrupt. Some websites post the MD5 checksum of a file on their download page. Once you have downloaded the file, use winMd5Sum to get the MD5 checksum of the file on your computer. Then make sure that the MD5 checksum from the web site is the same. If they are the same, then your file is exactly the same as the file on the website.

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🐧 8 comments so far... add one

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8 comments… add one
  • Rob Bechard May 31, 2008 @ 3:26

    winmd5sum looks like a very handy and helpful program. I downloaded and installed it, but it locks up every time I browse to the dvd iso that I downloaded. I cannot get it to work and I need to force it to close by using windows xp task manager.

  • kp Jun 9, 2008 @ 19:43

    Rob, As soon as you browse for the ISO, and select it, the process to compute the MD5 starts. It is a weird process, but who says programmers are in touch with their end users?

  • kace Oct 7, 2008 @ 19:07

    Yes, I saw the same thing as you Rob, and had two “not responding” processes in the task manager. But, after reading kp’s comment and seeing that they were still consuming a moderate amount of CPU, I decided to let them run a while and see. It finished. (And, my sum matched. Yay. :) )

  • Andrea Dec 15, 2008 @ 0:53

    How do you find the MD5 checksum on the website you download the image from? I downloaded the Vixta 3D 9.03 iso and have no idea how to get the MD5 checksum to verify it.

  • Kushal Koolwal Feb 22, 2009 @ 0:11

    Hi, do you know any software which is free and have the facility to upload the checksum file? All the one that I found they require you to copy/paste the checksum code.

  • Kate Mar 4, 2009 @ 13:00

    I started to use other application that doesn’t hang and has portable version just one file without installer. I used it for few days for quickly calculating md5 and sha1 checksums. It also has some improvements over other applications – stay on top, save last checksum used and what’s most important – save windows position, because I’ve had enough moving programs to the right of the screen every time I wanted to calculate checksum.
    Search for Marxio File Checksum Verifier 1.2

  • Cory Dec 14, 2010 @ 23:18

    Perfect. Thank you.

  • Adnan Apr 5, 2011 @ 12:34

    i have iso file and mdh5 file, i downloaded them from HP website for Server Smart Start software, it says that “Note: Simply copying the ISO file to a CD-R will NOT result in a usable CD. HP recommends you run MD5 Checksum on the Zip file and/or ISO image prior to burning the CD. HP also recommends that you turn the verify feature “ON”.
    i have burnt .iso files 10 times today but the cd doesnot boot on the server, can anyone help that how shall i use these files ??

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