How to Fix CHKDSK – An Unspecified Error Occurred

Summary: In case, the CHKDSK unspecified error appeared while running the CHKDSK scan on an inaccessible, corrupt, or RAW drive, or if you are unable to find your files after the error appeared, follow the below instructions. These will help you to get back your files and fix the error safely by using a data recovery software such as Stellar Data Recovery Professional. Get the software now!

Check Disk or CHKDSK is a command-line based Windows disk error checking and repair utility that helps you verify hard disk integrity and fix file system errors—mainly used for NTFS drives. It also helps recover readable information from bad sectors and optimizes hard drive by marking the bad sectors to avoid data or drive corruption.

However, you may experience a few CHKDSK errors such as ‘An unspecified error occurred (….. …)’—with some code—while running the scan (see screenshot).

The error may appear during a CHKDSK scan run by the user or by the system during the system boot when it detects a problem with the internal hard drive integrity. It may also appear after the CHKDSK scan is complete.

This CHKDSK error is an indicator of a severe disk problem and may lead to disk failure. So, if you can access the drive, immediately back up your data while you can from the hard drive to avoid data loss.

How to Safely Fix ‘An Unspecified Error Occurred’

Sometimes, fix for CHKDSK ‘An unspecified error occurred’ can be as easy as formatting the drive. However, formatting leads to permanent data loss and thus, isn’t recommended. Further, the error may also occur due to drive permissions, damaged or altered system files due to malware/virus infection, abrupt shutdown, and system crash, etc.

So, it’s important to find out drive condition before you head to fix the CHKDSK error and avoid any further consequences.

Step 1: Check Drive SMART Status

A drive may fail while running the troubleshooting steps, as it’s already suffering from a severe disk error. Thus, before you proceed to fix CHKDSK ‘An unspecified error occurred,’ check the SMART status of your hard drive for SMART errors, warnings, and health issues.

For this, you need to remove the affected drive from the Windows PC and connect it to a working Windows PC via SATA or SATA to USB converter cable/enclosure.

If you see any discrepancies in SMART parameters, clone the drive by following the next step.

In case everything is ‘OK,’ close the Drive Monitor and skip to Step 3 to troubleshoot and fix the CHKDSK error.

Steps 2: Image or Clone Disk (Optional)

Follow this step if your drive is dying or displays SMART warnings.

Disk Cloning requires an additional internal or external physical drive with volume size equal or larger than your affected drive.

You can click on the ‘Clone Disk’ option in the ‘Drive Monitor’ utility and connect a new drive for cloning.

Watch this video to create a clone of your Hard Drive

Steps:

In case you don’t have a new drive at present, you may create Disk Image, save them within your PC or external media and recover your files by using Stellar Data Recovery Professional software.

To create Disk Image, follow these steps:

Step 3: Fix CHKDSK – An Unspecified Error Occurred

While there is no direct solution to fix the CHKDSK error, you may try these troubleshooting methods to fix the error – An unspecified error occurred’.

a. Run SFC Scan

System File Checker or SFC scan checks system files integrity and replaces damaged or corrupt system files that might have caused CHKDSK error with a new copy from the cached location.

sfc /scannow

b. Update Driver or Reinstall Device

To update drivers, visit hard drive manufacturers support site and check for driver updates. If available, download and install the driver update. Then reboot the system for the changes to take effect.

c. Scan System with Anti-Malware/Virus Tool

You may use Windows Defender or third-party reliable antivirus software to scan and clean system from the infected file.

If none of these troubleshooting steps fixes the CHKDSK – An unspecified error occurred, follow the next step to get back your lost and inaccessible files.

Step 4: Recover Data

To recover data from a CHKDSK error affected hard drive, run Stellar Data Recovery Professional software and then follow the below steps.

In case you want to recover from Disk Images created in Step 2.,

After data is recovered and saved, you can format the hard drive. At this stage, you should be able to fix the CHKDSK error. If not, let us know via comments down below for more help.

Conclusion

Disk errors can be fatal for the data and may lead to permanent data loss – sometimes beyond the scope of recovery. Thus, if you experience a disk error such as the CHKDSK error ‘An unspecified error occurred’ during system boot or while running CHKDSK scan, immediately try to back up your files.

If the drive turns inaccessible or RAW or you are not able to back it up, use Stellar Data Recovery Professional to get back your files. The professional data recovery software can help you get back your data from any Windows-based storage media, including formatted, corrupt, and missing drive partitions.

Further, the tool helps prevent data loss by actively monitoring your system drive for such disk errors.

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