Curtis Johnstone

September 10, 2011

How to Check a MD5 or SHA1 Checksum on a File in Windows

Filed under: Technology — Tags: , — admin @ 10:15 am

Many shareware and open source projects are using MD5 or SHA1 checksum’s to ensure that the executable file you download is the authentic executable you are about to run on your computer.

A checksum will be a long ugly looking strong like this MD5 checksum: 5b8a3ce687052c70d3ec524945a70fc4a68f5b5b.

To check that the file you downloaded is authentic, you can use a command line tool from Microsoft called “FCIV”.

The tool and instructions on how to use it is available here: http://support.microsoft.com/kb/841290.

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