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Michael Mirosnichenko
Michael Mirosnichenko

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The Error «A Disk Read Error Occurred» or «BOOTMGR is Missing» – How to Fix

While working with the computer, you must have seen a number of errors, and one of them can be A disk read error occurred. Press Ctrl + Alt + Del to restart or BOOTMGR is missing. Press Ctrl + Alt + Del to restart. Read this article on the causes behind these errors and how to fix them.

Errors like this can be triggered by many factors such as wrong BIOS configuration, a virus infestation, damage to the hard disk and so on. Here are some possible solutions:

Disable external storage devices

If there are any external devices connected to your computer, such as DVD or USB drives, disconnect them to see if the error appears again.

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Check the connection

Although your computer worked all right last time, it doesn’t mean that it will work properly the next time you start it. It is quite possible that such an error can be caused by poor contact with the hard disk, so it’s a good idea to test the quality of connection.

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Check the device with other PCs

In addition to a hard disk problem, other PC components may break down as well. That means that you should check the disk operability with another computer which is in good working condition.

Check the OS boot priority

Choosing a wrong bot priority in BIOS can also result in one of such errors. If your computer has several storage devices, you should check the boot sequence settings.

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Restore MBR or boot sector

Damage to MBR, the Master Boot Record, can also cause read disk errors. To fix it, you will have to bot from a Windows installation disk or USB drive.

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Click Next. Select Repair your computer.

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Then Troubleshooting

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