Disk errors can cause problems such as slow file access, application crashes, missing files, unexpected system behavior, or Windows becoming unstable. If you suspect that a hard drive or SSD is having problems, Windows 11 provides several built-in ways to check the drive.
You do not always need third-party software to perform a basic disk check. File Explorer can quickly scan a drive, while the CHKDSK command provides more detailed checking and can also repair certain file-system errors.
Windows 11 also includes tools such as PowerShell and Windows Terminal that can be used to perform disk checks from the command line. Choosing the right method depends on whether you simply want to check a drive or need Windows to repair detected file-system problems.
Before running repair operations, save your work and back up important files. A disk check can identify file-system problems, but it cannot fix a physically failing SSD or hard drive.
Method 1: Check a Drive for Errors Using File Explorer
File Explorer provides the simplest way to perform a basic drive check.
- Press Windows + E to open File Explorer.
- Click This PC in the left navigation pane.
- Under Devices and drives, locate the drive you want to check.
- Right-click the drive.
- Select Properties.
- Open the Tools tab.
- Under Error checking, click Check.
- Select Scan drive if Windows provides the option.
Windows will check the drive for file-system problems.
If no errors are found, Windows will indicate that the drive does not need to be scanned.
If problems are detected, Windows may provide an option to repair them. Follow the instructions displayed on screen.
This method is useful when you want to perform a quick check without entering commands.
It is especially convenient for checking secondary drives and removable storage devices.
Method 2: Check and Repair a Drive With CHKDSK
CHKDSK is one of the most useful built-in Windows commands for checking file-system errors.
- Press Windows + X.
- Select Terminal (Admin).
- If User Account Control appears, click Yes.
- Enter the following command:
chkdsk C:- Press Enter.
Replace C: with the drive letter you want to check.
For example, to check D:, use:
chkdsk D:CHKDSK examines the file system and reports information about the volume.
A basic CHKDSK scan does not necessarily repair every problem it finds. If you want Windows to attempt repairs, use the /f parameter:
chkdsk C: /fWindows may report that the volume is currently in use.
If you are checking the Windows system drive, you may be asked whether you want to schedule the check for the next restart.
Type:
Yand press Enter.
Restart your computer and allow Windows to complete the disk check.
Do not force the computer to shut down while a scheduled disk check is running.
Method 3: Check for Bad Sectors With CHKDSK
If you suspect that a hard drive has bad sectors, CHKDSK can perform a more extensive scan.
Open Terminal (Admin) and enter:
chkdsk C: /rThe /r parameter tells CHKDSK to look for bad sectors and attempt to recover readable information.
This operation can take considerably longer than a normal file-system check, particularly on large hard disk drives.
The process may appear to pause for a long time while Windows examines different stages of the volume. Avoid interrupting it simply because the percentage does not appear to change quickly.
On SSDs, unnecessary repeated full surface scans are generally not something you need to perform routinely. Use this option when there is a specific reason to investigate potential disk or file-system problems.
If the drive is physically failing, CHKDSK cannot repair the underlying hardware. If you notice repeated errors, disappearing files, unusual noises from a hard drive, or rapidly worsening performance, back up your data as soon as possible.
Method 4: Use CHKDSK With Both Repair Options
For a more comprehensive file-system check, you can combine the /f and /r parameters:
chkdsk C: /f /rThis instructs CHKDSK to fix file-system errors and look for bad sectors while attempting to recover readable information.
Because this is a thorough operation, it can take a long time.
To check another drive, change the drive letter:
chkdsk D: /f /rIf the drive is currently being used, Windows may ask to schedule the operation for the next restart.
This method is more appropriate when you have a specific reason to suspect file-system corruption or disk-sector problems rather than as a routine maintenance task.
Make sure important files are backed up before running extensive repair operations.
Method 5: Check Disk Health Using PowerShell
PowerShell provides another way to examine storage devices.
- Press Windows + X.
- Select Terminal (Admin).
- Enter:
Get-PhysicalDiskPress Enter.
Windows will display information about the physical disks detected by the system.
You can also use:
Get-PhysicalDisk | Select-Object FriendlyName, MediaType, HealthStatus, OperationalStatusThis produces a more focused view of the disk name, media type, health status, and operational status.
For example, a disk may report a health status such as:
HealthyIf Windows reports a warning or unhealthy state, investigate the drive further and make sure important data is backed up.
Keep in mind that a Windows health status is not a guarantee that a physical drive will never fail. Hardware monitoring information can vary depending on the drive and storage controller.
Method 6: Check the Windows System Drive Before Startup
When Windows is actively using the C: drive, some CHKDSK operations cannot be completed immediately.
If you run:
chkdsk C: /fWindows may display a message indicating that the volume is currently in use.
You may then be asked whether you want to schedule the disk check for the next system restart.
- Type Y.
- Press Enter.
- Save your work.
- Restart the computer.
During startup, Windows can run the scheduled disk check before the normal desktop loads.
Depending on the size and condition of the drive, the operation may take some time.
Do not turn off the computer during the check unless Windows specifically instructs you to do so.
Once Windows starts normally, you can check whether the original disk problem has been resolved.
Method 7: View the Results of a Previous CHKDSK Scan
If CHKDSK ran during startup, you may want to see what it found.
Windows records system events that can contain information about disk checks.
You can use Event Viewer to search for the results.
- Press Windows + R.
- Type:
eventvwr.msc- Press Enter.
- Expand Windows Logs.
- Select Application.
- Look for an event associated with Chkdsk or Wininit.
- Open the relevant event to view its details.
This can be useful when the disk check happened automatically during startup and you did not see the complete results.
If the log reports repeated file-system problems, take the issue seriously rather than repeatedly running repairs without investigating why the errors are occurring.
Repeated errors can be caused by an unstable drive, unexpected shutdowns, damaged file-system structures, or other underlying problems.
Method 8: Check the Drive After Finding Errors
After Windows completes a disk check or repair, verify whether the original symptoms have improved.
Check the following:
- Open the affected drive in File Explorer.
- Try opening important folders.
- Check whether previously inaccessible files can be opened.
- Restart Windows normally.
- Observe whether applications continue to crash.
- Check whether the same error messages return.
If the problem disappears, the issue may have been related to file-system corruption.
If errors continue to appear, do not assume that running CHKDSK repeatedly will solve the problem. A physical drive can deteriorate even when Windows can still access it.
For important data, create a backup before performing additional troubleshooting.
If a drive contains critical files and shows signs of physical failure, prioritize copying the data to another healthy storage device.
Conclusion
Windows 11 includes several useful tools for checking disks for errors. For a quick check, File Explorer’s drive error-checking feature is the easiest option. For more detailed file-system checking and repair, CHKDSK provides command-line options such as /f and /r.
PowerShell can also provide useful information about the physical disks and their reported health status. If CHKDSK needs to examine the Windows system drive, Windows may schedule the operation for the next restart.
A disk check can repair certain file-system problems, but it cannot repair physically damaged storage hardware. If errors repeatedly return, files become corrupted, or a drive shows other signs of failure, back up important data immediately and consider replacing the storage device.
Checking a disk when you notice unusual behavior can help identify problems early and prevent a minor file-system issue from becoming a larger data-access problem.
FAQs
1. How do I quickly check a disk for errors in Windows 11?
Open File Explorer, right-click the drive, select Properties, open Tools, and click Check under Error checking. Windows can then scan the drive for detected file-system problems.
2. What is the CHKDSK command in Windows 11?
CHKDSK is a built-in Windows utility that checks a volume’s file system for errors. Commands such as chkdsk C: /f can also attempt to repair certain file-system problems.
3. How long does CHKDSK take?
The time depends on the drive’s size, speed, condition, and the options used. A basic check can be relatively quick, while a scan using /r can take much longer, especially on large hard drives.
4. Can CHKDSK repair a failing hard drive?
CHKDSK can repair certain file-system problems and attempt to recover readable information from problematic sectors, but it cannot repair physically failing storage hardware. If a drive appears to be failing, back up important data immediately.
Quick Summary
- Use File Explorer for a simple disk-error check.
- Use
chkdsk C: /fto check and repair file-system errors. - Use
/rwhen you specifically need a more thorough check for bad sectors. - Repeated disk errors can indicate a failing drive, so back up important data promptly.