How to fix corrupted cbs.log in a few simple steps

Aleksandar Ognjanovic
by Aleksandar Ognjanovic
Troubleshooting Expert
Aleksandar's main passion is technology. With a solid writing background, he is determined to bring the bleeding edge to the common user. With a keen eye, he always spots the next big thing surrounding Microsoft...
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fix corrupt cbs.log files
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Corruption of system files isn’t something you can sweep under a rug and continue with standard use. Those need to be dealt with and as soon as possible. One error like that informs users who run System File Checker that the cbs.log file is corrupt.

The corrupted cbs.log file can mean a variety of things, neither of them good. That’s why you need to address this and we explained how to do it below.

How to fix corrupt cbs.log in Windows 10

  1. Scan for malware and run SFC once again
  2. Run DISM
  3. Reset your PC to factory settings

Solution 1 – Scan for malware and run SFC once again

System File Checker will is a tool which will register corruption of system files and provide you with some insight. However, it won’t deal with some of them on its own, as they might require additional actions.

On the other hand, when the cbs.log file is corrupted, we strongly encourage you to scan for malware. This might be a false positive or the result of a system infected by malware.

Here’s how to run a deep offline scan with Windows Defender:

  1. Open Windows Defender from the taskbar notification area.
  2. Choose Virus & threat protection.
  3. Choose Scan options.scan options windows defender
  4. Select Windows Defender Offline Scan.
  5. Save everything you’re doing as this mode will restart the PC.
  6. Click Scan defender offline scan

Afterward, open Command Prompt as administrator and run sfc /scannow again to confirm that the error is addressed. If that’s not the case, move to additional steps.

Solution 1 – Run DISM

If your PC is malware-free but you’re still stuck with the same error, we suggest running DISM alongside the System File Checker utility. The Deployment Image Servicing and Management tool should fix all system corruption with rather ease.

Here’s how to run DISM along SFC via the elevated Command Prompt:

  1. Open Command Prompt as an administrator.
  2. In the command-line, type sfc/scannow and press Enter.
  3. After its done, type the following command and press Enter after each:
    • dism /online /cleanup-image /checkhealth
    • dism /online /cleanup-image /restorehealth
  4. Reboot your PC when everything ends.

Solution 2 – Reset your PC to factory settings

Finally, if you see negative results once again and there are signs of system issues, we suggest resetting your PC to factory settings and moving from there. This operation will indeed relieve you of all installed applications, but you at least get to keep your files.

Here’s how to reset your PC to factory values on Windows 10:

  1. Press Windows key + I to open the Settings app.
  2. Choose Update & Security section.
  3. Select the Recovery from the left pane.
  4. Under the “Reset this PC” option, click Get started.reset this pc windows 10

With that said, we can conclude this article. Don’t forget to tell us whether these helped you or not in the comments section below.


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