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0x0000007AKERNEL_DATA_INPAGE_ERRORStop codeWidely reported

KERNEL_DATA_INPAGE_ERROR (0x0000007A): what it means and how to fix it

Updated Oct 9, 2026 · Checked against Microsoft documentation · How this page is made

Quick answer

This error occurs when Windows cannot read necessary data from your hard drive into your computer's memory. It is most often caused by a failing hard drive, corrupted disk sectors, or faulty RAM. Start by running the Windows disk checking tool to identify and repair storage issues.

What it means

Understanding the Error

When your computer runs, it constantly moves data between your physical hard drive and your RAM. The KERNEL_DATA_INPAGE_ERROR means that Windows tried to pull a specific piece of information from the paging file—a section of your hard drive used as temporary memory—but the operation failed. Because the system cannot access this data, it stops everything to prevent further corruption or loss.

Why It Happens

This error is almost always related to hardware communication problems. If your hard drive has physical damage or logical errors, the system cannot read the data it needs. Similarly, if the memory sticks in your computer are failing, they may corrupt the data before it can be processed. In some cases, loose cables connecting your hard drive to the motherboard can cause the system to lose contact with the drive entirely, triggering this crash.

Identifying the Cause

The error screen often displays a status code, such as 0xC000009C or 0xC000016A, which points toward bad sectors on your disk. Other codes like 0xC000009D or 0xC0000185 suggest that the computer cannot see the drive or that there is a problem with the physical connection. Checking the System Event Viewer can help you see if your hardware reported errors immediately before the crash occurred.

Common causes

  • Bad sectors or physical damage on the hard drive.
  • Defective or failing RAM memory modules.
  • Loose or damaged cables connecting the hard drive to the motherboard.
  • A virus infection affecting the Master Boot Record.
  • Insufficient system resources or memory pool exhaustion.

How to fix it

Safest and most likely fixes first. Readers' answers to "Did this fix it?" reorder this list over time.

  1. Run the disk check utility

    Use this to repair logical errors and identify bad sectors on your storage drive.

    1. Open the Start menu and type cmd.
    2. Right-click Command Prompt and select Run as administrator.
    3. Type chkdsk /f /r and press Enter.
    4. Type Y when asked to schedule the scan for the next restart.
    5. Restart your computer to allow the scan to complete.
    Did this fix it?

  2. Check for hardware connection issues

    Use this if you suspect a loose cable or if you have recently moved your computer.

    1. Shut down the computer and unplug the power cable.
    2. Open the computer case to access the internal components.
    3. Locate the data and power cables connected to your hard drive.
    4. Ensure each cable is firmly seated in its port.
    5. If you have a desktop, ensure all internal adapter cards are properly seated in their slots.
    Did this fix it?

  3. Run memory diagnostics

    Use this to determine if your RAM is failing.

    1. Open the Start menu and type Windows Memory Diagnostic.
    2. Select the app from the results.
    3. Choose Restart now and check for problems.
    4. Wait for the computer to reboot and perform the test automatically.
    5. Review the results after the computer logs back into Windows.
    Did this fix it?

  4. Scan for viruses

    Use this to rule out malicious software affecting your system files.

    1. Open Windows Security from the Start menu.
    2. Go to Virus & threat protection.
    3. Select Scan options.
    4. Choose Full scan and click Scan now.
    Did this fix it?

Is it just you?

25+ Microsoft Q&A threads discuss this. Most recent activity:

Checked Oct 8, 2026. Refreshed automatically every few days.

Sources

Frequently asked questions

Is my hard drive dying if I see this error?

It is a strong possibility, as this error often points to read failures on the disk. Back up your important files immediately.

Can I fix this error without replacing hardware?

If the error is caused by minor file system corruption, running the disk check utility may resolve it. If the drive has physical damage, software fixes will not provide a permanent solution.

What should I do if the computer won't boot?

You may need to use the Windows Recovery Environment to run the disk check tool from a command prompt. If you cannot access that, you may need to consult a professional technician.

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