SOLVED! “Windir\Logs\CBS\CBS.log”

Once it comes to addressing corruption in the system files of Windows, System File Checker (SFC) is one of the best things people could use. Designed as a utility that scans for and restores corrupted system files, SFC could return computers to normal in most of the cases. Still, it’s worth pointing out that the SFC could fail in its attempt to take care of corruption. When SFC cannot fix corrupted system files, it would return a message that says something about a “CBS.log file located at windir\Logs\CBS\CBS.log

SFC Failing To Fix Files: Possibilities 


As you browse Internet content, download and install apps,… malicious programs could enter your computer. Needless to say, the presence of malware would disrupt processes of your computer including SFC scan. Therefore, regarding SFC failures, you should take malware into account. 


Different programs allow you to perform different actions on your computer. Sometimes, the programs could compete for the same resources which results in failures. On occasions, the message about “Details are included in the CBS.Log Windir\Logs\CBS\CBS.log” is the consequence of the conflict between programs. 


Generally speaking, your disk could develop errors when segments of the file become inaccessible or when your system cannot finish writing data to files. In normal circumstances, SFC scan could effectively and efficiently address corruption in the system files. However, if the disk gets too corrupted, the scan will not be able to deliver the desired result. 

What Must Be Done


  • Step 1: Press Windows + I to open Settings.
  • Step 2: Select Update & Security then open Windows Security.
  • Step 3: Choose Virus & Threat protection and click Scan options.
  • Step 4: Tick the circle next to Microsoft Defender Offline scan then hit Scan now.
  • Step 5: Wait until the scan completes then run the SFC scan again and see how things turn out.

Deployment Image Servicing and Management (DISM)

If SFC fails for some reason, it’s a good idea to give DISM a go. 

    • Step 1: Press the Windows key + R to open Run.
    • Step 2: Type cmd then press Ctrl + Alt + Enter to run Command Prompt as administrator.
    • Step 3: Type the following commands while hitting Enter after each command.
  • DISM /Online /Cleanup-Image /CheckHealth” without quote and press ENTER.
  • DISM /Online /Cleanup-Image /ScanHealth” without quote and press ENTER.
  • DISM /Online /Cleanup-Image /RestoreHealthCheck Disk.
  • Step 4: After you finish, perform the SFC scan one more time then determine whether the issue persists.

Disk Cleanup

  • Step 1: Press the Windows key + E to open Windows Explorer.
  • Step 2: Click This PC then right-click the disk you want to clean.
  • Step 3: Select Properties, go to the General tab then Hit Disk Cleanup.
  • Step 4: After Windows finishes calculating the amount of space that requires cleanup, check the boxes for the files you like to clean.
  • Step 5: Click OK then hit Delete files on the confirmation pop-up.
  • Step 6: Wait until the cleanup then rerun the SFC scan.

Clean Boot

  • Step 1: Turn off your PC and turn it on again.
  • Step 2: As the logo starts appearing, press the power button three times to get Windows to the Advanced Recovery Environment.
  • Step 3: In Choose an option, select Troubleshoot then go to Advanced options.
  • Step 4: Click Startup Settings then hit Restart.
  • Step 5: Once the PC restarts, click Enable Safe Mode and this will take your PC to Safe Mode.
  • Step 6: Launch cmd as administrator then run the SFC scan

Note: After the clean boot is complete, remember to boot normally using the following steps

  • Step 1: Press Windows + R to open Run.
  • Step 2: Type msconfig then hit Enter.
  • Step 3: In General tab, pick Normal Startup and click OK.
  • Step 4: Once prompted, hit Restart.

Windows Update

  • Step 1: Press Windows + I to open Settings.
  • Step 2: Select Update & Privacy then click Windows Update
  • Step 3: Hit Check for Updates and if an update is available, it will be automatically downloaded and installed.
  • Step 4: Once the installation is done, restart your computer to effect changes then run the checker.

Reinstall Windows

If all the solutions have failed to address your issue, you will have to reinstall Windows.

  • Step 1: Launch your web browser, visit the Microsoft website and download the Media Creation Tool.
  • Step 2: Once the download is complete, you will be prompted to run the Media Creation Tool so hit Run.
  • Step 3: Read all the terms and conditions then hit Accept.
  • Step 4: Select Upgrade this PC now then choose Next.
  • Step 5: On the next window, ensure that the box beside Keep personal apps and files is checked then hit Install.
  • Step 6: Assuming that the installation is a success, choose the account you want to sign in with then accept the terms.
  • Step 7: Once you have signed in, all the system files should have been free of corruption. That means the message about “CBS.log file located at windir\Logs\CBS\CBS.log” would no longer pop up as you run SFC scan.

Frequently Asked Questions

What is the CBS.log file?

CBS, short for Component Based Servicing, is a file that includes logs about Windows Update components i.e. when they get installed or uninstalled during updates. Naturally, SFC writes to CBS.log as well. CBS.log. is located in the Windows Explorer (Windir\Logs\CBS\CBS.log).

Is it possible to only view SFC-related information?

  • Step 1: Press the Windows key then type cmd.
  • Step 2: Right-click the Command Prompt then select Run as administrator.
  • Step 3: Type findstr /c:”[SR]” %windir%\Logs\CBS\CBS.log >”%userprofile%\Desktop\sfcdetails.txt” then hit Enter.
  • Step 4: On your desktop, the sfclogs.txt file will be created. Double-click it to open the file and read it. 

Tips And Tricks

  • Perform a Check Disk regularly.
  • Only use authentic and reputable antivirus programs.
  • Verify the integrity of every file before downloading.
  • Properly shut down your system.

Leave a Comment