MicrosoftWindowsWindows 10
Thesystem file checker toolis a useful command used to scan and repair corrupt or damaged system files.
This command is usually used when users encounter problems with the system files of Windows OS.
sfc /scannow is the most popular command to scan for corrupt system files immediately.
It will not only scan, but also attempt to repair or replace corrupt system files with healthy ones.
It requires a Windows installation source to copy files from.
This command line can perform several functions.
Select Open With from context menu
We will discuss these in this article.
However, that is not always the case, and users may encounter different errors from time to time.
The table below lists those scenarios along with their possible solutions.
Select program to open with
Note:The methods to perform these solutions are discussed below.
Since the CBS.Log file can be lengthy, you’ve got the option to analyze it using theFindfunction.
Note:The steps given below need to be performed in a methodical order as given.
CBS.Log file
Here is how to do it:
OpenCommand Prompt with administrative privileges.
EnterYfor yes.Run Check Disk utility
Now reset your machine.
Once it reboots, the Check Disk utility will run and scan your hard drive.
Run DISM utility
This can take a while, in some cases, hours.
Let the scan finish and reboot into Windows.
Using this account, you will have elevated privileges required to manipulate protected files.
SFC scan in Safe Mode
There are several ways to switch on the built-in Administrator account on a Windows computer.
Clickhereto learn more about them.
This is intended for troubleshooting Windows problems.
Proceed to next
Open theSystem Configurationapplet by typing inmsconfigin the Run Command box.
Learn other methods toboot into Safe Mode.
get in From Built-In Administrator Account
Now you mustlog in to the Administrator accountthat you enabled earlier.
Attempt to repair
This will allow you to have the privileges to repair missing or corrupted system files.
Fixing the system image will then allow the SFC scan to perform its task without any hindrance.
The DISM tool can be used to prepare, modify, and repair system images.
Select Troubleshoot
Launch theCommand Prompt with administrative privileges.
Now execute the following cmdlets one after the other, allowing each cmdlet sufficient time to complete.
Once this is done successfully, do not shut the Command Prompt.
Open Command Prompt in WinPE
trigger the following cmdlet in an elevated Command Prompt:
That is it!
This method should eliminate any issues you experience while performing the SFC scan in basic mode.
Restart the computer once the scan is complete.
Note down drive letter
To begin, we suggest you analyze the CBS.Log file, as we discussed earlier in this post.
This method can be especially useful if you are unable to boot into Windows.
Plugin the bootable rig and boot from it.
Take ownership of file
On the first screen, clickNext.Proceed to next
Now clickRepair your box.Attempt to repair
Now selectTroubleshoot.
Now selectCommand Prompt.Open Command Prompt in WinPE
The Command Prompt will now open in front of you.
Paste the following cmdlet to verify the drive letter assigned to the volume where Windows is installed.
Grant Administrators full rights to file
Therefore, it is important to determine which drive letter is currently assigned to the boot volume.
If this does not work for you either, you might manually replace the corrupted files yourself.
Here is how to do it:
Start by taking ownership of the corrupted system file.
Open service properties
you’re free to now repeat the same process to manually replace any corrupted files.
In that case, you must direct the SFC scan to attempt and repair another drive.
Open Command Prompt with elevated privileges.
Enable and start service
In that case, the service needs to be enabled.
initiate the Services console by typing inservices.mscin the Run Command box.
When the service starts, clickApplyandOkto save the changes.Enable and start service
Try rerunning the SFC scan.
Modify Security Descriptors
Learn other methods toenable and disable Windows services.
This feature can be controlled through the systemBIOS.
Learnhow to access BIOS.
Modify Security Descriptors
A Security Descriptor contains security information that may be associated with a securable object.
To mitigate this issue, perform the following task:
Launch the Command Prompt with administrative rights.
Now spin up the following cmdlet:
Now reboot your setup and try rerunning the SFC scan.
Short answer: Yes, it does.
However, the SFC tool itself can occasionally encounter errors, which are also fixable.
How to run SFC scan?
spin up the following cmdlet in the Command Prompt:sfc /scannow
Is the SFC scan safe?
Yes, the SFC scan is completely safe.
What does SFC ScanNow actually do?
Can you exit SFC scannow?
Yes, it is safe to cancel the scan.
However, we do suggest that you allow it to be completed as it causes no harm.
If you find that it is stuck you’re able to cancel it using theCTRL + Ckeys simultaneously.
Does SFC ScanNow improve performance?
Can SFC ScanNowfix BSoDs?
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