How to recover .chk = CHKDSK files, partial solution

[ctechn]

I had about 15 files saved as File0000.chk through File0014.chk.

PLEASE CHANGE CATEGORY IF I POSTED IN THE WRONG SECTION.

First I tried renaming them with the likely extensions I use most often, such as .xlsx and .docx respectively for Excel and Word. This successfully recovered over 1/2 of my files. Now I have 5 files remaining, which aren't yet recoverable, even trying other extensions like .pdf, .txt, and .jpg but no luck on those. I believe most of my files are .xlsx since I viewed them in an editor and see the words "worksheet" which are normally related to spreadsheets. I also downloaded and ran the free UnCHK at ericphelps.com and this recovered 1 more file.

http://ericphelps.com/uncheck/index.htm

With my 5 remaining files, I tried joining some of them, thinking that maybe that might solve something, but that hasn't worked yet. ANY OTHER SUGGESTIONS? I have even tried joining different combinations of 3 file fragments into 1.

Here is an example of the code to join 2 files.

copy /b file0099.jpg + file0001.chk test.jpg

The above would take the partially recovered file0099.jpg file and add the contents of
file0001.chk to it, storing the result in test.jpg. You'd then have to try opening the
test.jpg file to see if that helped.

 

[Bubbaleone]

Tried this? DIY DataRecovery CHK-Mate

 

[ctechn]

Tried this? DIY DataRecovery CHK-Mate

Yes, already tried that, didnt help.

 

[davidzsy]

I had about 15 files saved as File0000.chk through File0014.chk.

...
Here is an example of the code to join 2 files.

copy /b file0099.jpg + file0001.chk test.jpg

I had an mp4 that could not play nor copy. I fortunately noted it to be just over 800MB before I did Check Disk repair which gave me a VLC playable file but played only 4+mins of the 7+mins stated in the play time bar. I suspected the CHK files contained the rest of the video and searched and found your cmd way of combining files.

I tried your copy method adding one then another CHK file and got back the whole video.

I registered just to say THANKS!

THANKS VERY MUCH for this tip.