How to fix 'KERNEL_DATA_INPAGE_ERROR' in Windows?

Run CHKDSK to check for disk errors by opening Command Prompt as Administrator and entering chkdsk C: /f /r, scheduling it if necessary. 2. Execute sfc /scannow to repair corrupted system files, and if that fails, use DISM commands: DISM /Online /Cleanup-Image /CheckHealth, DISM /Online /Cleanup-Image /ScanHealth, and DISM /Online /Cleanup-Image /RestoreHealth. 3. Test RAM using Windows Memory Diagnostic by typing mdsched.exe in the Run dialog, restarting to run the check, or use MemTest86 for a more thorough analysis. 4. Update or roll back storage drivers in Device Manager under Disk drives and IDE ATA/ATAPI controllers, or download the latest drivers from the manufacturer’s website. 5. Verify virtual memory settings by unchecking automatic management, selecting System managed size for the system drive, and clicking Set. 6. Perform a full malware scan using Windows Defender or a trusted antivirus program. 7. Assess disk health using CrystalDiskInfo to read SMART data, listen for physical drive issues, and ensure SATA connections are secure. 8. As a last resort, back up data and perform a clean Windows installation using a bootable USB created with the Media Creation Tool. The KERNEL_DATA_INPAGE_ERROR is typically resolved by addressing software and driver issues first, followed by hardware diagnostics, and most cases do not require hardware replacement.

The KERNEL_DATA_INPAGE_ERROR is a common Windows stop code (also known as a Blue Screen of Death or BSOD) that typically indicates the system can't read important kernel data from the pagefile on disk. This error is often related to hardware issues, corrupted system files, or storage driver problems. Here’s how you can fix it step by step.

1. Check Your Hard Drive or SSD for Errors

This error frequently stems from disk problems. Start by running built-in disk diagnostics.

Run CHKDSK:

1. Open Command Prompt as Administrator:
   • Press Win X and select Command Prompt (Admin) or Windows Terminal (Admin).
2. Type the following command and press Enter:

   chkdsk C: /f /r

   (Replace C: with the drive letter where Windows is installed if different.)

   
3. If the drive is in use, you’ll be prompted to schedule the scan on the next restart. Type Y and restart your PC.

This process checks for bad sectors and attempts to recover readable data.

2. Run SFC and DISM to Repair System Files

Corrupted system files can cause this error. Use the System File Checker and DISM tool to fix them.

Run SFC:

1. In the same admin Command Prompt, run:

   sfc /scannow

2. Wait for the scan to complete. If issues are found and fixed, restart your PC.

Run DISM (if SFC fails):

1. Run these commands one by one:

   DISM /Online /Cleanup-Image /CheckHealth
   DISM /Online /Cleanup-Image /ScanHealth
   DISM /Online /Cleanup-Image /RestoreHealth

2. After completion, restart and check if the issue persists.

3. Check Your RAM for Problems

Faulty memory can cause data page read failures.

Use Windows Memory Diagnostic:

1. Press Win R, type mdsched.exe, and press Enter.
2. Choose Restart now and check for problems.
3. Your PC will reboot and run a memory test. If errors are found, you may need to replace the faulty RAM stick.

For a more thorough test, use MemTest86 (bootable USB tool) and let it run for several passes.

4. Update or Roll Back Storage Drivers

Outdated, corrupt, or incompatible storage drivers (especially SATA/AHCI/RAID) can trigger this error.

Steps:

1. Boot into Safe Mode (hold Shift while clicking Restart, then go to Troubleshoot > Advanced Options > Startup Settings > Restart > Enable Safe Mode).
2. Press Win X → Device Manager.
3. Expand Disk drives and IDE ATA/ATAPI controllers.
4. Right-click each device and select Update driver.
5. Alternatively, if the issue started after a recent update, choose Roll Back Driver if available.

Also, visit your motherboard or laptop manufacturer’s website to download the latest storage drivers.

5. Verify Pagefile and Virtual Memory Settings

Since the error involves "inpage" data, incorrect virtual memory settings might be the culprit.

Check Pagefile Settings:

1. Press Win Pause/Break → Advanced system settings.
2. Under Performance, click Settings → Advanced tab → Virtual memory → Change.
3. Uncheck “Automatically manage paging file size”.
4. Select your system drive (usually C:), choose System managed size, then click Set.
5. Click OK and restart.

This ensures Windows can properly manage the pagefile.

6. Scan for Malware

Rarely, malware can corrupt system processes or disk access. Run a full system scan using Windows Defender or a trusted third-party antivirus.

7. Check for Disk Hardware Issues

• If you're using an older HDD, it might be failing. Listen for clicking noises or slow access.
• Use tools like CrystalDiskInfo to check the drive’s health via SMART data.
• Consider replacing the drive if it shows signs of failure.

Also, ensure SATA cables (if using desktop) are securely connected. Try a different cable or port if possible.

8. Perform a Clean Windows Installation (Last Resort)

If all else fails and the hardware checks out:

• Back up your data (if possible from Safe Mode or another PC).
• Create a bootable USB using the Microsoft Media Creation Tool.
• Perform a clean install of Windows.

This eliminates deep system corruption.

Fixing KERNEL_DATA_INPAGE_ERROR usually comes down to disk, memory, or driver issues. Start with CHKDSK and SFC, then test RAM and update drivers. Most cases are resolved without needing hardware replacement. Basically, rule out software first, then suspect hardware.

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