Windows 10: Corrupted system files from sfc /scannow

Discus and support Corrupted system files from sfc /scannow in AntiVirus, Firewalls and System Security to solve the problem; Hi there, I'm having a serious trouble here. sfc /scannow finds corrupted files and I was infected by a trojan Ymacco and !BOB in system32. I can't... Discussion in 'AntiVirus, Firewalls and System Security' started by EmanueleAcquafredda, May 16, 2023.

  1. EMANUELEACQUAFREDDA
    EmanueleAcquafredda Win User

    Corrupted system files from sfc /scannow


    Hi there, I'm having a serious trouble here. sfc /scannow finds corrupted files and I was infected by a trojan Ymacco and !BOB in system32. I can't update with windows update and troubleshoot reports waasmedic, is postback false and pending updates. I can't own local disk C:, impossible to enumerate files cryptography? I have AVG installed as internet security software. This from CBS log file2023-05-16 11:44:51, Info CSI 00000228 Warning: Overlap: Directory \??\C:\Program Files x86\ is owned twice or has its security set twice Original owner: Microsoft-Windows-shell32

    :)
     
    EmanueleAcquafredda, May 16, 2023
    #1
  2. MORKU
    Morku Win User

    20H2 system files corrupted on a clean Windows installation sfc /scannow

    Hi,

    I have noticed that sfc /scannow corrected system files. I wonder. So I tested again on a clean Windows 10 20H2 installation and run directly after sfc /scannow.

    Preparation for testing:

    • I used VMware Workstation 16.0.0
    • I created a new virtual machine with default Windows 10 profile
    • I disabled the Network Adapter, the OS has
      no internet the whole process
    • I used the latest official Windows 10 ISO file Win10_20H2_English_x64.iso (md5: e80f6ce987b2bba288469e7379129e12) Build 19042.508
    • Mounted the ISO in VMware

    Installation:

    • So I started to install Windows 10
    • Install Now, No product key, Windows 10 Home, Language en-us, install on the unformatted 60GB drive etc.
    • After reboot, I used "no internet" for local Account, name: admin, no password, disabled all the telemetry trash
    After successful start, I started directly cmd.exe with administrator privilegs and run sfc /scannow.

    It will found corrupted systems files.


    Corrupted system files from sfc /scannow [​IMG]


    It didn't let me post the log here, so I made a Screenshot.

    What is going on here?

    I repeated the steps with de_windows_10_business_editions_version_20h2_x64_dvd_ce126f3b.iso (md5: 35df62707e53c2064641ccd5b91acb8d)

    Type license: Enterprise

    After repeating the steps above, the result is the same.
     
    Morku, May 16, 2023
    #2
  3. BERKKARAKAS
    Berkkarakas Win User
    sfc/scannow corrupt file

    sfc/scannow keeps finding corrupt files and fixing them
     
    Berkkarakas, May 16, 2023
    #3
  4. BERKKARAKAS
    Berkkarakas Win User

    Corrupted system files from sfc /scannow

    sfc/scannow corrupt file

    sfc/scannow can fixing but every time find corrupt files and fixing them
     
    Berkkarakas, May 16, 2023
    #4
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Corrupted system files from sfc /scannow

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