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Windows 10 20H2: ChkDsk damages file system on SSDs

Discussion in 'Windows 10' started by Steve R Jones, 2020/12/20.

  1. 2020/12/20
    Steve R Jones

    Steve R Jones SuperGeek Staff Thread Starter

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    Steve R Jones,
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    Bill likes this.
  2. 2020/12/20
    Bill

    Bill SuperGeek WindowsBBS Team Member

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    This is an interesting report - and a scary one. I just Googled it and find the report very widespread which is why it is scary. But when I looked at all the reports, they all seem to refer back to that same Born's report which sourced a Planet3DNow! report.

    It seems odd to me this apparently has affected only a handful of computers and only in Germany. That does not make sense. Is it in the universal kernel used on all versions of Windows? Just the German version? Or some 3rd party application unique to those German computers? IDK.

    And for that matter, it does not make sense for Microsoft to make any modifications to Check Disk (chkdsk). As far as I know, there have been no changes to the NTFS industry standard protocols and AFAIK, Check Disk had no bugs in need of fixing. It is a very mature program. And what if users run Error Checking instead - which is essentially chkdsk /f but initiated through the Windows GUI? IDK.

    Will have to wait and see if other reports from other independent sources can validate this new bug and more importantly, what Microsoft's response will be. If it turns out to be a real bug in 20H2, Microsoft better come out with a fix today, if not before.
     
    Bill,
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  4. 2020/12/23
    Steve R Jones

    Steve R Jones SuperGeek Staff Thread Starter

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  5. 2020/12/23
    Bill

    Bill SuperGeek WindowsBBS Team Member

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    Thanks for this Steve. I have to admit, I have heard nothing about this bug since you initially reported it. Just looking again, there are lots of new articles on the bug, but none refer to new incidents or cases of the problems caused by the bug. They all go back and parrot that original report you cited that affected just a handful of German systems. Really odd.

    Any way, I am glad Microsoft acknowledged the problem and released a fix. Even though the bug didn't actually destroy any data, and recovery was pretty simple following the published workaround provided by MS as seen in the KB links in the Bleeping Computer article Neowin sourced, I am sure it was a bit of a harrowing experience for those few who did encounter it.

    Thanks again.
     
    Bill,
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  6. 2020/12/24
    Christer

    Christer Geek Member Staff

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    I wonder if it can do any damage on its own, unless the user initiates a run of CheckDisk?
     
    Christer,
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  7. 2020/12/24
    Bill

    Bill SuperGeek WindowsBBS Team Member

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    It should not matter now, if you keep your computer updated. Either way, it does not appear irreparable damage was ever a problem since the "workaround" restored full access without any data loss.

    I guess if worried you could run chkdsk without any switches. That is, just enter chkdsk at the command prompt and see if it finds any problems. Since that just inspects the drive without making any changes, no harm can occur. It seems only when the /f switch was included in the command string did the bug bite.
     
    Bill,
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  8. 2020/12/24
    Christer

    Christer Geek Member Staff

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    Yes, the /f switch tells it to fix and concequently to write.
     
    Christer,
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  9. 2020/12/26
    Christer

    Christer Geek Member Staff

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    I have noticed a difference the last few days. In the TaskBar, there has always been an Icon to safely remove a USB-stick, regardless of one being inserted or not. Now, if no stick is inserted, no icon to remove it safely. The icon appears when the stick is inserted. I wonder if there's a connection with changes made to rectify the issue at hand?
     
    Christer,
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  10. 2020/12/26
    MrBill

    MrBill SuperGeek WindowsBBS Team Member

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    The only time I have ever seen that ICON is when there is a USB plugged into the PC.
     
    MrBill,
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  11. 2020/12/26
    Bill

    Bill SuperGeek WindowsBBS Team Member

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    I don't see how this is connected to the chkdsk issue.
     
    Bill,
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  12. 2020/12/26
    retiredlearner

    retiredlearner SuperGeek WindowsBBS Team Member

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    retiredlearner,
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  13. 2020/12/27
    Christer

    Christer Geek Member Staff

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    The strange thing is that it's on the Desktop (PRO) as well as on the LapTop (HOME). It must be some quirk in the Swedish version.

    Neither do I but it is a "disk" and as I mentioned in another thread, the FDD-drive gets "checked to death" after the most recent version of W10 (2004) forcefully, without my initiation, was installed. There's a lot going on with disks and drives nowadays ... o_O ... !

    Well, possibly that we all should use the american-english version of W10 ... :confused: ... meaning that nothing gets lost in translation between the different versions.
     
    Christer,
    #12

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