DIY DataRecovery CHK-Mate is an application for identifying files created by Windows Chkdsk. For various reasons (power outage, crash, etc.) Windows sometimes loses pieces of information.
That data is recovered by programs like Chkdsk or Scandisk. However, after they finish their work you are often left with strangely named folders filled with files with odd names (e.g. filexxxx.chk). Most people will delete those files as there is little use for them, but sometimes they are real files with important information. If you lost important files after running Chkdsk or Scandisk you should give CHK-Mate a try.
This application tries to identify the strangely named files and fix their extension. Windows will then recognize the extension and allow you to open the file and see if there is anything of interest.
This is a very straightforward program and there are instructions visible on every step of the way in case you need more details about what is being done. You begin by choosing the folder where the files to recover are kept (remember, this program cannot open hidden folders). On step two you have the option to recover only the text from the files. This can be useful if the file was severely damaged. Then you need to select the folder were the recovered files should be saved and you are done. Expect some delay, as the program checks every .chk file you have and every file type it knows. Since all files recovered are saved in a different folder, there is no risk of losing important data.