Contents
- 1 Part 1. What Causes Disk or File System Errors on Windows 11?
- 2 Method 1. How to Use CHKDSK in Windows 11 to Check and Fix Drive Errors
- 3 Method 2: Use SFC /scannow to Fix Disk Errors Windows 11
- 4 Method 3: Use DISM to Repair the Windows Image
- 5 Bonus Part. CHKDSK vs SFC vs DISM: What’s the Difference?
- 6 Conclusion
- 7 Frequently Asked Questions
Disk errors can show up in the form of slow performance, system crashes, or even boot failures. These issues often result from improper shutdowns or failed Windows updates. Luckily, you don’t always need third-party software to diagnose or fix disk errors Windows 11. Some powerful built-in tools can help you identify and repair most disk and file system errors with just a few simple commands.
In this article, you will learn the reasons and the basic fixes that involve these solutions. You will learn how these fixes work on your computer, and links to their detailed explanations are also shared. At the end, the guide will explain the difference between these tools so you know when to use them.
Part 1. What Causes Disk or File System Errors on Windows 11?
Before we dive into the details of how to repair system files Windows 11, it is important to understand why these errors happen in the first place. Below are some of the common reasons why such issues occur:
- Power Outages: If your computer suddenly loses power or you force it to shut down, it can interrupt important background processes. This might leave some files only partially saved or even corrupted. When you turn the system back on, it may run into disk errors because of this. If this happens often, it can gradually make your system unstable and unreliable.
- Corrupted Files: Sometimes, important Windows system files can get messed up because an update didn’t install correctly, and some programs didn’t play nice with each other. When these core files are missing or changed, your computer might start crashing, showing strange error messages, or refusing to open certain apps. That’s when built-in repair tools like SFC and DISM can really help.

- Sector Issues: Over time, especially with older hard drives, disk parts can go bad and stop working properly. If Windows tries to read or save something in one of these faulty spots, it might freeze up or show error messages about the disk. That’s where CHKDSK comes in—it’s a built-in tool that can scan the drive, find those problem areas, and try to fix them.
- Driver conflicts: Viruses and other malicious programs can mess with important system files or change settings to slow things down or cause errors. Also, if the drivers are outdated or don’t work well with your hardware, they can make devices act up and even affect how your disk runs. Running regular system scans and updating your drivers can go a long way in keeping these problems at bay.
Method 1. How to Use CHKDSK in Windows 11 to Check and Fix Drive Errors
Short for Check Disk, this method is a tool that helps you fix problems with your hard drive. When dealing with a slow system or crashes, CHKDSK can scan for possible errors. Moreover, it works on both internal and external drives of your computer. This way, you can easily determine what is going wrong with your storage. By checking the health of your files and the drive itself, you can improve performance and fix disk errors on Windows 11.
Key Features
- It examines the integrity of the file system and file metadata on a disk volume to check logical errors.
- This method identifies areas of the disk that are physically damaged and attempts to recover readable information.
- Whether dealing with an internal HDD/SSD or an external USB drive, CHKDSK can analyze and repair issues effectively.
How to Run CHKDSK
To learn how this method works, follow the simple steps given ahead:
Step 1. Press Win + S, type cmd, then right-click Command Prompt and select Run as administrator.

Step 2. Type the following and press Enter:chkdsk C: /f /r
Replace C:
with the drive letter you want to scan.

there is a link provided in this article that you can follow to run chkdsk from boot in Windows 11.
Method 2: Use SFC /scannow to Fix Disk Errors Windows 11
It is a handy tool built into Windows that checks if any core system files are missing. When you run this command in Command Prompt (with admin rights), Windows scans your system and automatically tries to fix any problems. It does this by comparing your current files to a clean backup, which it keeps on hand and swaps out damaged ones. If your computer is acting strangely, like apps crashing or random errors popping up, SFC is a solid first step to try and get things back on track.
Key Features
- This method examines all protected system files for integrity violations.
- If it detects any corrupted or missing files, SFC replaces them with a cached copy in a compressed folder.
- By repairing system files, SFC helps maintain the stability and reliability of your Windows 11 system.
How to Run SFC /scannow to Fix Disk Errors Windows 11
To learn how to use sfc /scannow in Windows 11, follow the instructions given below”
Step 1. Open Command Prompt as Administrator (Win + S → search cmd → right-click → Run as administrator).

Step 2. Type the command: sfc /scannow and wait for the scan to finish. If it finds and fixes errors, it will tell you.

Method 3: Use DISM to Repair the Windows Image
If running sfc /scannow doesn’t solve the problem, the next tool to try is DISM, which stands for Deployment Imaging Service and Management Tool. It’s a more advanced utility that steps in when deeper issues affect the system, especially if the files SFC depends on are themselves damaged. With the command dism /online /cleanup-image /restorehealth, Windows 11 can go online, grab fresh copies of critical system files from Microsoft, and replace anything that’s broken. DISM works hand-in-hand with SFC and is especially useful when dealing with serious system corruption that’s causing disk errors or overall instability.
Key Features
- DISM checks and repairs the system image that SFC depends on to fix corrupted files.
- You will usually run DISM if you get messages like “Windows Resource Protection found corrupt files but was unable to fix some of them.”
- The component store holds all the files Windows needs for its features and updates. When that gets messed up, DISM is the tool to turn to.
How to Run DISM on Windows 11
To execute this method, follow the instructions in the linked article.
Bonus Part. CHKDSK vs SFC vs DISM: What’s the Difference?
It is vital to know the distinct functions of these three methods for effective system maintenance. Below is a quick comparison to help you determine which tool to use based on your specific needs:
Tool | Focus Area | Scans For | Fixes | Run When | Internet Needed |
CHKDSK | Disk & Sectors | Bad sectors | File system | Disk errors | No |
SFC | System Files | Corrupt files | System files | App crashes | No |
DISM | Windows Image | Image issues | Component store | SFC fails | Yes |
However, you can visit this link if you are looking for a detailed comparison of the three methods.
Conclusion
If you want to fix disk errors on Windows 11, you don’t usually need any third-party programs. Windows has built-in tools that can handle most problems. Users can try either method, and if the problems don’t go away, run SFC and then DISM. These tools are reliable, safe, and meant to be used one after the other to get the best results.
Frequently Asked Questions
Q1. What should I do if CHKDSK gets stuck?
If CHKDSK seems to get stuck, try to be patient—it might be working through some big files. But if it doesn’t respond for a long time, you can restart your computer and run CHKDSK again using the /f option to fix any file system errors.
Q2. Can I run SFC and DISM together?
Yes, it’s recommended to run SFC first to fix system files. If issues persist, follow up with DISM to repair the Windows image.
Q3. Will CHKDSK delete my files?
Generally, CHKDSK does not delete files. However, if it encounters severely corrupted files, it may isolate them, potentially leading to data loss. Always back up important data before running CHKDSK.