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Corrupted files are the most frustrating problem in Windows 11. Files may get corrupted for various reasons, such as unexpected system shutdowns and BSODs (Blue screens of death), power loss, several malware infections, and software and driver conflicts. Etc
Some of the early signs of corrupted system files are documents and programs that won’t open, unexpected program crashes, BSODs, boot issues, and an unresponsive system.
Fortunately, Windows 11 comes with several built-in tools and commands that can help you scan for & repair corrupted system files without the need to format the whole operating system.
In this guide, we’ll show you several methods and walk you through them step-by-step to detect and fix corrupted system files within Windows 11. These methods will help you get your system back on track.
Signs That a File or System Files Are Corrupted
Corruption can affect your regular files or the Windows system itself. Knowing the signs can help you identify whether you’re dealing with a minor file issue/corruption or a more serious system corruption problem.
Regular Files Level
The first sign you will encounter is a file that won’t open, no matter how many times you double-click on it; nothing will happen, and no error message will pop up.
Windows may act strangely and won’t recognize file types. Furthermore, some apps will start to freeze and crash when you try to open them. Your system may suddenly become unable to open, move, or delete certain files.
System Files Level
If your system files get corrupted, you will start seeing the famous “Blue screen of death” frequently, and your system will crash with stop codes that often point to corrupted system files. You will start feeling that your system is unstable, unresponsive, or it will randomly restart itself.
If one of the core features of Windows 11 or 10, like the Start Menu, Settings, or Task Manager, doesn’t work correctly, then I guarantee you that it’s 100% a system file-level corruption, and look no further!
Windows updates may fail repeatedly to update your copy of Windows, or new drivers may refuse to install or be updated.
If you notice any of these signs, it’s a good idea to scan and repair your system using Windows’ built-in tools like SFC, DISM, or CHKDSK, which we’ll explain in the next sections.
How To Fix Corrupted Files in Windows 11
Method 1: Use the System File Checker (SFC)
The System File Checker (SFC) is a built-in Windows 11 tool that scans for and repairs corrupted or missing system files. It’s often the first step when we are trying to fix stability issues or unexplained errors within both Windows 11 & 10.
SFC command checks the integrity of protected system files and replaces any corrupted versions with a clean copy from a cached folder stored by Windows itself.
Let’s start fixing our Windows 11, shall we?
First, click on the Start button on Windows 11 or the search icon on Windows 10 and search for “CMD”, then open the “Command Prompt” as “Administrator”. Click “YES” on the prompt you will encounter, which states that this app with make changes to your system.
Once the Command Prompt is opened, type the “sfc /scannow” command. Once you’ve done that, all you have to do is wait until the operation is finished.
Keep in mind that the process may take several minutes to complete, and don’t close the window until the verification process reaches 100%.
After the scan is completed, you’ll see one of these messages:
“No integrity violations found”, which means that your system files are fine, like in my case.
“Found and successfully repaired corrupt files”, which means that you have some good news! The SFC command has successfully fixed the issues/corrupted files within your system.
“Found corrupt files but was unable to fix some”, which means that the SFC command has failed, and you’ll need to try the DISM tool, which we will cover in Method 2.
Method 2: Use the DISM Tool
If the SFC scan couldn’t fix some of the corrupted files, the next step is to use the DISM tool (Deployment Imaging Service and Management Tool). DISM goes deeper than SFC by repairing the Windows system image itself.
DISM can detect and repair corruption/errors in the Windows component store, which is used by the SFC command to fix corrupted system files. Once DISM fixes the image, you can run SFC again to repair system files successfully.
Let’s fix SFC using DISM to fix our Windows 11, shall we?
Just like we did in the first method, click on the Start button on Windows 11 or the search icon on Windows 10 and search for “CMD”, then open the “Command Prompt” as “Administrator”. Click “YES” on the prompt that will pop up.
Next, you have to run the following commands one by one.
First, you have to check for corruption using the “DISM /Online /Cleanup-Image /CheckHealth” command.
This is a quick scan to see if there’s anything wrong. If you see that the component store is repairable, you may proceed to the next command.
Second, you have to scan the system image using the “DISM /Online /Cleanup-Image /ScanHealth” command.
This will take a bit longer, but it will check deeper into your system files for corruption.
If you see that the operation has been completed successfully and the component store is repairable, you may proceed to repair the SFC command and the integrity of your system.
Finally, you have to repair the corruption in the system image itself using the “DISM /Online /Cleanup-Image /RestoreHealth” command.
This command will repair the Windows image if any corruption is found, and it will take some time to finish.
After the scan finishes, restart your PC. Once your PC has booted to Windows, it’s a good idea to run SFC again using the “sfc /scannow” command. Now, you have two options:
If the SFC command was a success after repairing the component store. Congratulations on fixing your Windows 11. If the SFC command failed, you can proceed to the next method we’ll cover next.
Method 3: Run Check Disk Utility (CHKDSK)
Check Disk (CHKDSK) is a built-in Windows utility that scans your HDD/SSD for errors, bad sectors, and file system corruption. It’s helpful if your files are corrupt due to drive-related issues.
CHKDSK examines the integrity of your disk and attempts to fix logical file system errors, recover bad sectors, and repair drive-related problems that could lead to file corruption or system crashes/failures.
Just like we did in the first & second methods, you have to click on the Start button on Windows 11 or the search icon on Windows 10 and search for “CMD”
Then open the “Command Prompt” as “Administrator”. Click “YES” on the prompt that will pop up.
Next, you have to type the following command: “chkdsk C: /f /r /x” to check for corruption in your disk drives.
We will explain the command and what it does in detail, so don’t worry!
- C: is the drive letter you want to check. C is the default & primary hard disk partition, which contains Windows (replace if needed).
- /f – Fixes file system errors.
- /r – Locates bad sectors and recovers readable data.
- /x – Forces the drive to dismount before the scan if necessary.
Next, press “Enter” to run it. If you’re scanning your system drive (usually C: as we said), you’ll see a message saying the scan will be scheduled to run at the next system restart.
Type “Y” and Press “Enter” on your keyboard to schedule the scan on the next reboot.
If you are done with your PC, restart it to let CHKDSK run immediately.
This may take a while, so be patient and don’t interrupt the process by turning off your PC.
If the CHKDSK command found and fixed issues, you’ll be returned to Windows automatically.
As a Pro Tip: You can check the results in Event Viewer under “Windows Logs > Application > Wininit”.
Method 4: Use Windows Security to Scan for Malware
Malware, viruses, and other malicious software can damage or corrupt your entire system and also your files. In some cases, corrupted files are the result of an active infection. That’s why it’s recommended to run a full malware scan before trying to fix the data.
You can use the built-in antivirus that both Windows 11 & 10 offer, which is Microsoft Defender Antivirus within the Windows Security app, which provides real-time protection against all types of malware.
For this method to work, we will run a full scan of your entire system to identify any potential threats available and then remove them.
First, press “Start” and type “Windows Security” in the search bar, then open it. For Windows 10, you will have to press “Search” and then type “Windows Security” in the search bar.
In the sidebar, click “Virus & threat protection.”
Click “Scan options” and select “Full scan”.
Finally, click on “Scan now” and let the scanning process begin!
A full scan of your system may take quite some time, depending on your storage size and type. To learn more about storage types, specifically HDDs vs SSDs, you can read our article covering HDDs vs SSDs 101 in detail.
If threats are found, follow the prompts to quarantine or remove them and restart your PC immediately!
Method 5: Using System Restore in Windows 11
A system restore point is a feature that saves snapshots of your system’s settings, registry, and critical system files at a specific point in time. It works by reversing recent changes to your Windows copy that may have caused instability problems or corruption, or broken something in Windows 11. It doesn’t affect your files, so don’t worry too much.
For this method to work, you must have some restore points created beforehand. The System Restore feature doesn’t fix corruption caused by hardware failure or malware.
On the other hand, it can help if some Windows Update or driver installation caused problems, or a certain software that was installed recently caused system errors or file corruption.
To get started, click on the search icon in your taskbar or simply press “Windows + S” on your keyboard, type “Create a restore point”, and open it. You should see something like this:
In the System Properties window, click System Restore. If you didn’t have or create a restore point beforehand, you will encounter this window, and you can’t use this method, unfortunately!
If you meet the requirement, you will be greeted with this window:
Click on “Next” to proceed.
Select the snapshot you want to return to, and preferably select a time before the issue started!
Review the details and click on “Finish” to restore your system. Please note that your PC will restart and attempt to return to that earlier working state.
Method 6: Restore Your Files from Backup or Recovery Software (For Personal Files)
If your files (like documents, photos, or videos) are corrupted or lost, and repair tools like SFC or CHKDSK didn’t help, the only way you have now is either to restore them from a backup or try some file recovery software.
Option 1: Restore Files From a Backup Using OneDrive
OneDrive is Microsoft’s free cloud storage service that comes built into Windows 11. It allows you to automatically sync your files (backup & restore), like Documents, Pictures. Etc., to the cloud.
If OneDrive was enabled on your device before the file or files got corrupted or deleted, there’s a good chance you can restore a clean version from the cloud.
Please note that this backup feature must have been enabled before the file was corrupted or deleted to get an old, working copy.
First, you must head to OneDrive at https://onedrive.live.com
Second, you must log in with the same Microsoft account linked to your Windows 11 PC.
Third, browse through your files that will pop up, or use the search bar feature to search for a specific file you want.
Finally, if the file exists in a healthy state, download it directly or restore it to your PC.
Option 2: Use File Recovery Software (Last Resort)
If you are in trouble and don’t have a backup, you may have a last chance of getting your files back with the help of some reliable file recovery tools. These tools can sometimes retrieve deleted or damaged files from your hard drive, but only if the data hasn’t been overwritten.
For this method to work, you must act quickly; the longer you wait, the harder it is to recover lost data. Also, avoid saving new files to the same drive where the lost file was.
When a file in the NTFS (New Technology File System), which is the default file system used by Windows NT-based operating systems, including Windows 11, gets deleted, its entry in the Master File Table (MFT) gets marked as “deleted”. So, file deletion in NTFS is not erasure!
As a fun fact, digital forensic detectives use this feature to their advantage. They analyze the file’s clusters to reconstruct files and evidence. The whole process is very difficult and requires a strong understanding of OSs and File Systems.
Some tools I recommend to hopefully restore your files:
- Recuva: The most famous and free recovery software, it can restore deleted files from hard drives, USBs, and SD cards. etc
- EaseUS Data Recovery Wizard: Easy to use, but with free, limited recovery options to choose from.
- Disk Drill or MiniTool Power Data Recovery: Those Powerful tools offer deep scan options for everyone.
Method 7: Reset or Repair Windows (For System Files)
If your Windows 11 system is severely corrupted and the tools we featured in this guide, like SFC, DISM, and CHKDSK, didn’t help you out. You might have two remaining solutions. It’s time to consider a system reset or repair.
Option 1: Use “Reset This PC” (Without Losing Files)
Windows 11 offers a built-in reset feature that lets you reinstall the whole operating system from a reserved fresh copy without deleting your files.
To get started, go to Settings > System > Recovery.
Under Recovery options, click “Reset this PC”.
Choose whether to keep your files or remove everything. Please note that it’s a good idea to back up important data just in case. Even if you choose the “Keep my files” option.
Keep in mind that your apps will be removed either way.
Now, choose whether you want to perform a local reinstall or use a cloud download to reset your PC.
As a Pro tip, and from my experiences. Choose a cloud download to perform the reset. If your system is severely corrupted, the “Local reinstall” option will further corrupt it, and it will be unusable!
Once it’s unstable, you have to perform a fresh format, and all of your files will get deleted!
Finally, follow the remaining on-screen instructions to complete the process of reinstalling Windows 11.
Option 2: Perform a Repair Install or BIOS Format
A repair install keeps everything in your OS. Your apps, files, and settings will be kept.
You can keep your files by reinstalling Windows using a clean ISO image, whereas a full format will erase everything on the drive.
–> To repair your Windows, download the Windows 11 ISO from the official Microsoft website. Next, mount the ISO file you just downloaded by right-clicking on your mouse and selecting “Mount“ from the context menu.
Next, go to “This PC”, and run setup.exe from the mounted drive. Finally, proceed through the wizard, choose “Keep personal files and apps” when prompted, and let the setup repair your OS.
–> To format your Windows, First, download the Windows 11 ISO from the official Microsoft website. Next, download “Rufus” from its official website, then run it.
Second, insert a USB with 8GB of free space or more; it must be empty, as this program will create a bootable USB drive, and to do that, it will format it to burn a fresh copy of Windows 11 into the USB stick.
Next, choose the GPT disk partition because Windows 11 requires it, and don’t forget to use NTFS as a file system. Finally, review all details and click on “START”. Give it some time to finish.
Once it finishes, eject your USB stick and turn off your PC. Insert the USB stick once more, turn your PC on, and then select it as a boot drive. Continue the Windows 11 installation as you did before, format your drive, and select it; that’s it.
Pro Tip: Check the following options:
Remove requirements for 4GB+ RAM, Secure boot, and TPM 2.0.
Remove the requirements for an online Microsoft account.
Disable data collection (Skip privacy questions)
You will format your PC in no time! You may also set a local account using the same username as your old, corrupted PC.
How To Prevent Future File Corruption?
To keep your system stable and your files safe, it’s important to follow some simple best practices I will show you now.
Always Shut Down Your PC Properly
Avoid forcing your PC to shut down or cutting power to it. Use the Start > Power > Shut Down option to let Windows close processes safely.
Use a Reliable Antivirus
Something like Kaspersky will do the trick, as it has real-time protection that helps block malware that can corrupt your files or your system.
Keep Your Windows Updated
Check for updates regularly in “Windows Update” in the “Settings” app; they include bug fixes, security patches, and stability improvements to get the best experience out of your OS. Don’t forget to enable automatic updates.
Create Regular Backups
Back up important files you don’t want to lose to an external drive or a certain cloud storage solution. You can use File History, OneDrive, or any third-party backup tool you would like.
Avoid Risky Third-Party / Cracked Software!
Poorly coded or malicious apps can damage system files, interfere with or modify crucial core components and functions, and can even put you in danger. Keep in mind, don’t install programs from unknown or untrusted sources.
Conclusion
File corruption in Windows 11 can be frustrating. Fortunately, Windows offers a lot of built-in tools, like SFC, DISM, and CHKDSK, that can detect and fix many of these problems without the need for third-party software help.
For more serious cases, you can restore your files from a backup, using some free recovery software I mentioned. Resetting/formatting your system usually brings things back to normal.
The key is to act early, read and understand the warning signs, and apply the right method based on the severity of the issue.
To avoid running into these problems again, make it a habit to back up your files, make restore points after a certain time has passed, keep Windows updated, and only use trusted software!
By following the steps in this guide, you’ll not only fix corrupted files but you’ll also build a more stable and reliable Windows experience moving forward.
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