Scandisk convert XP PC partition to CHK files

January 11, 2010 at 08:32:48
Specs: Windows XP
Hello, yesterday i was doing some important coding on my pc, suddenly the pc shutdowned. when i turned it on again i got Boot Error in one of my partitions ( F:\).

in that partition very important data and scripts. so i didn't format it, i tried to fix it....And i made my biggest mistake when i pressed right click on it and i ran and SCANDISK(right click=>tools tab=>Error Checking)....

THe SCANDISK didn't fix the partition Boot Error... so i tried another program called "Partition Table Doctor" and it did it, that program fixed the Bot Error from the F: partition..

After that i opened the partition and i shocked when i saw that the windows SCANDISK which i ran previously converted all my folders and files to .CHK files!!! :mad: ...more than 30Gb got converted to thousands of .CHK files :mad:

Now i searched google for that issue and i have found that article

I tried to use the second program from the article (UnCHK by Eric Phelps), it works. But here is the problem...what SCANDISK done is removing all the folders and renaming all the files to Filexxxx.CHK, so that program only reading the files header to rename the extensions again...

So if i used this program i will get thousands of files called Filexxxx.zzz in the partition root directory and that would be disaster for me because i had hundreds of important scripts that i have made and the folders directories are so important for my data !!!

so please help me, how can i reverse this stupid SCANDISK to get the files and the folders with the directories back ???

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January 11, 2010 at 09:03:41
Not scandisk but chkdsk.

For eveything to end up as chk files your master file table/partition table had to have been severely corrupted.

ANY program encountering the same would have resulted in the same.

There is no chkdsk undo that I am aware of though many of us have wished for one.

Another good reason to backup.

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January 11, 2010 at 11:19:39
wanderers last line sums it up.

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January 11, 2010 at 12:43:09
Another equally-value lesson for everyone else: Never use your everyday machine to perform any testing, coding, etc. Use a dedicated PC that you don't mind destroying for that type of work.


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January 12, 2010 at 12:33:46
So, what was wrong with the drive ?

Bad sectors ?
Partitioning screw up ?

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