Windows 10 Pro Error 0xc000021a - can't boot in safe mode

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  1.    12 Jun 2018 #1

    Windows 10 Pro Error 0xc000021a - can't boot in safe mode


    Hi, yesterday I was using my PC when all of a sudden it froze and I foolishly turned off the electricity.

    Once I turned it on, the blue screen and "error 0xc000021a" appeared. I tried everything, even (in prompt command) Dism, sfc/ scannow, chk disk /f /r, dism/online/cleanup-image/restorehealth, dism /image:E:\ /cleanup-image /revertpendingactions .

    After this error occurred, Windows tried to fix it automatically which it then failed and transferred me to the Recovery Environment.

    I found out that the windows folder is in Unit E (I don't know why). I tried to reset it, but at 29% it annuls all the changes. It can't even restore the old version or boot in safe mode and neither in online network mode.

    I even tried to reinstall windows using a USB, but it didn't work (I properly switched the boot priority order before).

    The main issue is that I have no restore points and I absolutely can't lose the data.

    What can I do?

    I understand that there are several threads with this and I have searched as many as I could find but couldn't find anything that helped (I am Italian, I've tried to translate the better I could)

    Thank you in advanced
      My ComputerSystem Spec

  2. axe0's Avatar
    Posts : 13,781
    Windows 10 Pro
       12 Jun 2018 #2

    Hi silvia,

    The system repair option creates a file in "windows\system32\logfiles\Srt\SrtTrail.txt". Via the command prompt in advanced recovery options could you copy this file to a USB and upload it via a different pc.You can copy the file by using the following command
    Code:
    copy X:\Windows\System32\logfiles\Srt\SrtTrail.txt "F:\"
    The letter 'F' is the USB, change the letter to the letter in use by the USB.
      My ComputersSystem Spec

  3.    12 Jun 2018 #3

    I copied the file


    axe0 said: View Post
    Hi silvia,

    The system repair option creates a file in "windows\system32\logfiles\Srt\SrtTrail.txt". Via the command prompt in advanced recovery options could you copy this file to a USB and upload it via a different pc. You can copy the file by using the following command
    Code:
    copy X:\Windows\System32\logfiles\Srt\SrtTrail.txt "F:\"
    The letter 'F' is the USB, change the letter to the letter in use by the USB.
    Thank you so much for the help, now I have the file, but I don't know what to do with it, if you could give me a hand with this I would be eternally grateful : SrtTrail.txt
    I'm so sorry it is written in Italian, however I tried to translate it with google translate and it is quite the same actually, I could translate the file and attach that too, if it could help.
      My ComputerSystem Spec

  4. axe0's Avatar
    Posts : 13,781
    Windows 10 Pro
       12 Jun 2018 #4

    It's no problem.

    You look to be having a driver problem related to the SATA drivers, specifically it's missing. Assuming it's part of the chipset drivers, that is the reason why you can't boot into any modes, and why DISM, SFC and chkdsk don't help, but I'm not entirely sure it explains the reset failure.

    How old is your system and what is the make & model and/or what are the specs?
      My ComputersSystem Spec

  5.    12 Jun 2018 #5

    axe0 said: View Post
    It's no problem.

    You look to be having a driver problem related to the SATA drivers, specifically it's missing. Assuming it's part of the chipset drivers, that is the reason why you can't boot into any modes, and why DISM, SFC and chkdsk don't help, but I'm not entirely sure it explains the reset failure.

    How old is your system and what is the make & model and/or what are the specs?
    I'm having some trouble finding the system information, although I checked it this morning using "Systeminfo" or "msinfo32" in Prompt command and it worked perfectly. I tried in many directories, but it says "not recognized as an internal or external command..." so I don't know at the moment
      My ComputerSystem Spec

  6. axe0's Avatar
    Posts : 13,781
    Windows 10 Pro
       12 Jun 2018 #6

    Msinfo32 reads information from a temporary registry hive that is recreated when Windows boots, since you can't boot msinfo32 can't get any information, many built-in tools/apps will have similar sources that aren't useful when you cannot boot.

    Msinfo32, and many other tools, is located in Windows\System32. Within Windows, that folder is 1 of the folders that's being used when you enter a command like 'start notepad', Windows uses the environment variable %path% to see if a file notepad exists in any of the folders %path% points to, if it does Windows will open it and if it doesn't Windows will return an error. Since this feature is not available outside Windows, you either have to specify the path, or execute from within the folder.

    As an aside, Windows uses the same feature to know what to do with extensions like 'exe and 'txt.
      My ComputersSystem Spec

  7.    12 Jun 2018 #7

    axe0 said: View Post
    Msinfo32 reads information from a temporary registry hive that is recreated when Windows boots, since you can't boot msinfo32 can't get any information, many built-in tools/apps will have similar sources that aren't useful when you cannot boot.

    Msinfo32, and many other tools, is located in Windows\System32. Within Windows, that folder is 1 of the folders that's being used when you enter a command like 'start notepad', Windows uses the environment variable %path% to see if a file notepad exists in any of the folders %path% points to, if it does Windows will open it and if it doesn't Windows will return an error. Since this feature is not available outside Windows, you either have to specify the path, or execute from within the folder.

    As an aside, Windows uses the same feature to know what to do with extensions like 'exe and 'txt.
    Ok, this should be the system information:Click image for larger version. 

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      My ComputerSystem Spec

  8. axe0's Avatar
    Posts : 13,781
    Windows 10 Pro
       13 Jun 2018 #8

    It is partially what I'm looking for, I'm mainly looking for the hardware specifications, i.e. the motherboard, CPU, RAM, GPU, PSU, cooling, etc.
    Have a look at the below picture to get an idea of what I mean.
    Click image for larger version. 

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      My ComputersSystem Spec

  9.    13 Jun 2018 #9

    axe0 said: View Post
    It is partially what I'm looking for, I'm mainly looking for the hardware specifications, i.e. the motherboard, CPU, RAM, GPU, PSU, cooling, etc.
    Have a look at the below picture to get an idea of what I mean.
    Click image for larger version. 

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ID:	192118
    Until now, I've found this info (I'm having trubles finding information about the graphic card):

    Computer Type: PC/Desktop
    OS: Windows 10 Pro
    CPU:Intel64 Family 6 Model 15 Stepping 2
    Motherboard: ASUSTeK Computer Inc. P5VD2-VM version:1.XX
    Memory:
    Capacity:21474838 Memorytype:21 Speed:667

    Hard Disk: SanDisk SDSSDP128G
    WDC WD10EARX-00N0YB0

    Antivitus: NOD32 Antivirus
    Browser: Mozilla Firefox
      My ComputerSystem Spec

  10. f14tomcat's Avatar
    Posts : 37,878
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       13 Jun 2018 #10

    silvia said: View Post
    Until now, I've found this info (I'm having trubles finding information about the graphic card):

    Computer Type: PC/Desktop
    OS: Windows 10 Pro
    CPU:Intel64 Family 6 Model 15 Stepping 2
    Motherboard: ASUSTeK Computer Inc. P5VD2-VM version:1.XX
    Memory:
    Capacity:21474838 Memorytype:21 Speed:667

    Hard Disk: SanDisk SDSSDP128G
    WDC WD10EARX-00N0YB0

    Antivitus: NOD32 Antivirus
    Browser: Mozilla Firefox
    This help?



    Video

    • Video Output
      graphics adapter
    • Graphics Processor
      VIA Chrome9 HC

    Graphics

    • Graphics Controller
      VIA Chrome9 HC
    • Memory Allocation Technology
      Shared video memory (UMA)



    https://www.cnet.com/products/asus-p5vd2-vm-motherboard-micro-atx-lga775-socket-p4m900-series/specs/

    Also, look in Device Manager and see what's here:

    Click image for larger version. 

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ID:	192127
      My ComputersSystem Spec


 
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