So what is a CHK file ? Well, any time a program or Windows crashes, any files that were open are not closed properly. Part of closing is writing all the file location information in all the right places. Without this info, Windows operating system can’t find all the parts of the file. When SCANDISK or CHKDISK is run, all the parts are identified as “lost file fragments” and converted (if you want) into CHK files. Face it. Stuff crashes all the time.
If you only run SCANDISK once a month, you get a month’s worth of old crash junk. If you were working on (and lost) something important just before a crash, you might want to try to recover any data from any CHK files that exist.
On the other hand, if you aren’t in a state of panic over lost data, just delete any CHK files. A handy tip: Keep your disk defragmented. That way if you ever do lose it all, the lost file fragments will be more likely to be complete files
Follow these steps to fix this issue…
- Change the file extension if you know exactly what software or program was lost. This can be done by taking the CHK file (let’s call it “Sample.CHK”), and if it was a Word document lost, change the extension to .doc (sample.doc). This will correct and restore the file. However, this will only work if you know the exact file that was lost.
- Download the free CHK file recovery program from http://www.ericphelps.com/uncheck/ Click “UnCHK” or “FileCHK.” These are two different CHK recovery files, but they work in the same way. The file will then download as a .zip file.
- Extract the file using WinZip or any other .zip program.
- Open the file once it has been installed. Select a file or drive to scan for CHK files. If you know the file location of the CHK file, select it. If not, have the program scan the entire drive.
- Select the CHK files you want to be restored once the scan is complete and click “Done.” The recoverable CHK files will now be restored.
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