How to Check File Integrity

1. Copy the downloaded DNC register file and its MD5 checksum file into the folder where the file integrity checking tool resides (e.g. C:\DNC).
2. Start a Common Prompt. (Open [Start] menu and click [Run...]. The following window will show. Type "cmd" and then click the [OK] button.)
   
3. Change directory (command: cd) to the folder where the file integrity checking tool resides, for example:
   
4. Execute the file integrity checking tool, md5sum.exe, as follows.
   md5sum -c <md5checksum>
   <md5checksum>     filename of the MD5 checksum file
5. If the integrity of the DNC register file is conserved, it will show OK; otherwise it will show FAILED.