Windows 10 Error Checking Tool and sfc

Hi Cerard, I am Rob, a volunteer and a 10 time and dual award MVP specializing in Windows troubleshooting and Bluescreen analysis. Please remember as volunteers we are not responsible for the development of Windows or the computer hardware and drivers.

CheckDisk (drive error checking) checks the disk integrity to be sure data can be written to the disk and it also check the files on the drive.

SFC /scannow checks some of the Windows operational files to be sure those are the proper ones that need to be accessed in the operation of the OS.

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Note that some of the errors that SFC finds may not be important.

You do not have to create the sfcdetails.txt to solve the issues as you can just skip down to the correction section below.

Use the method here to create a sfcdetails.txt which will allow you to see which files were not repaired. Some do not matter. The top link also shows what to do with files not repaired.

To open an Elevated Command Prompt in Windows 8/8.1/10 put the mouse in the lower left corner OR WINKEY + X - Command Prompt (ADMIN) OR Windows PowerShell (Admin).

Use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7 <-- also works on Windows 8/8.1/10.

http://support.microsoft.com/kb/929833

How to Run SFC Command to Repair System Files in Windows 10 < -- see Option 5

http://www.tenforums.com/tutorials/2895-sfc-com...

That method creates the sfcdetails.txt file in the folder you are in when you run it.

So if you are in C:\Windows\System32> then you will need to look in that folder for the file.

How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program generates in Windows Vista (Windows 7 and Windows 8/10 are similar)

http://support.microsoft.com/kb/928228

That creates sfcdetails.txt in C:\Windows\System32 find it and you can post the errors into a message here. NOTE : there probably are duplicates so please only post each section of errors once.

You can read the log/txt files easier if you right-click on Notepad or Wordpad then RUN AS ADMIN - then you can navigate to sfcdetails.txt ( in C :\Windows\System32 ) or cbs.log ( in C:\Windows\Logs ) as needed. (You may need to search for sfcdetails.txt if it was not created in the default folders.)

To correct the SFC errors :

Windows Key + X - Command Prompt (Admin) OR Windows PowerShell (Admin)

(Run these one line at a time.)

SFC /scannow

Note if that shows uncorrected errors - continue regardless.

When that completes run these :

DISM /Online /Cleanup-Image /CheckHealth

DISM /online /cleanup-image /scanhealth

DISM /online /cleanup-image /restorehealth

Note if that shows any uncorrected errors - continue regardless.

Then restart the computer.

Fix Windows Update errors by using the DISM or System Update Readiness tool

https://support.microsoft.com/en-us/help/947821...

How to Repair Windows 10 Image using DISM

http://www.tenforums.com/tutorials/7808-dism-re...

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If needed :

A Repair Installation which allows you to keep the programs and data though redundant backups are always a good idea.

How to: perform a repair upgrade using the Windows 10 ISO file

http://answers.microsoft.com/en-us/insider/wiki...

Please let us know the results and if you need further assistance.

CHKDSK==>Checks the Drive Integrity.

SFC==>Checks Windows Files Integrity.

Use DISM RestoreHealth to repair corrupted files by SFC:

http://www.yourwindowsguide.com/2016/04/run-sys...

Yes, there is a space after the " M " in DISM and before every " / ".

If you were to not use the spaces the command would not run.

You can just copy and paste them as well - just use one command at a time and hit enter - wait until each completes before using the next.

Let me know how it is going.

Thank you Rob it is a lot of info and I am a little intimidated.  Before a start using the DISM command I like to verify if there is a space in front of  the  slash (e.g. DISM / Online /....)  I would like also to know if after typing the command and hitting the enter key the system will reply with an acknowledgement message and some progres of the process like the sfc command.  I ask you before earlier this afternoon I use this command but the system was not responding during a few minutes so I close the command window