Need to make sure about chkdsk issue!

July 29, 2016 at 15:01:31
Specs: Windows 10

As you can see, i ran chkdsk /r on hard drive which got some bad sectors and this is screenshot for last moment before i stopped chkdsk. i canceled chkdsk after ran some minutes because i heard run chkdsk /r on hard drive with bad sectors can lose data.

So according to this chkdsk prompt window screenshot, was that possible about that data was removed/fixed or anything changed by chkdsk? i am asking about that chkdsk could do something to data even no errors are found on prompt window.

Actually i already posted same issue about another drive and took answer already, and MS support engineer gave same answer.

"From the above description I understand that you were able to cancel the chkdsk program within 3%. usually chkdsk command examine all the files and then start the fixes. However in this case you wouldn’t have lost any data."

So, i thought i need verify that answers i got, so i have additional question now.

My question is...

"If chkdsk finds error/corrupted/any kind of problem while running, is it strictly + immediately shows messages on prompt window? or possible to miss to show messages on window about what chkdsk did to data?"

I think answer should be like yes or no - simply, please help. thanks.

message edited by Alex1090

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July 29, 2016 at 15:54:24
The obvious answer is, your hard drive is failing. You should back up and important data and replace your drive ASAP.

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July 29, 2016 at 16:02:31
I already replaced data to new drive, after cancel chkdsk.

Only i wonder is, is it possible that chkdsk did something to data with no any report on prompt window = is chkdsk strictly + immediately shows messages on prompt window when found error or some problem?

Is chkdsk possible to miss to show messages on window about what chkdsk did to data?

That's all. last simple question for make sure.

message edited by Alex1090

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July 29, 2016 at 17:57:36
Your screenshot's not showing any cluster errors though?

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July 29, 2016 at 18:09:42
Depending on the command arguments supplied, chkdsk will display the sector/position on disk where an error is found and copy the readable data to another place if any. It can mark the sector as unusable.

If the data was good before the scan it should be good after the scan.

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July 29, 2016 at 18:22:55
I think i stopped chkdsk before it scans and finds where bad sector/cluster is placed.

So people says in this case chkdsk didn't do anything to data, also according to 1~3 stages are passed with no errors by report on prompt window.

I just want to know this opinion is correct or not.

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July 29, 2016 at 19:11:26
CHKDSK will get what it can. What's already lost is already lost, and there's not much you can do about it.

Well, you could try a program like SpinRite, but that takes hours, costs $90, there's no guarantee it'll do any better in data recovery, and depending on the exact nature of the drive failure, the extra work can cause more data loss. Then again, for those kinds of failures, just running Windows will cause more data loss so it's something of a moot point.

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July 30, 2016 at 05:38:35
You seem to be asking the same question over again (3 posts so far). The answer remains the same, if chkdsk finds a problem then it will try to fix it. Any data lost was already unusable before you ran chkdsk, it just tries to make that part of the disc serviceable again.

Chkdsk is not your enemy. If there is any problem it is with the hard disk.

Always pop back and let us know the outcome - thanks

message edited by Derek

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July 30, 2016 at 06:34:18
Paranoia has clearly set in.

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