A Disk Read Error: Recently one of my friends tells me that his computer fails to boot and an error message “A disk read error occurred. Press Ctrl+Alt+Del to restart” appears during the process of startup. He restarts the PC several times, but this message still exists.

A disk read error

Then I search this error online and find many users have encountered. So this post will introduce you some information about this topic, and the detailed solutions. If you also meet this error, hope the article is useful for you to fix the issue.

As you know, this error refers to the problem of your hard disk, or the issue to the process of reading the hard drive. To a large degree, it cannot be fixed by only a simple restart. Why does this issue happen to you? In fact, there are some main factors, such as incorrect boot order, BIOS issue, IDE cables failure, virus infection, operating system issue, bad RAM, incorrect MBR configuration and faulty hard drive. When meeting such a problem, how to fix it? Keep reading now.

How to Fix Disk Read Error?

The above paragraph mentioned the reasons about a disk read error occurred, so here I summarize seven ways to you according to different factors.

Way 1: Check and Modify Boot Order

Once read disk error appears at startup, you should check the BIOS order and view whether your system is set to boot from the correct hard disk or not. Please press a specific key to go to BIOS interface according to your PC. In BIOS, please press “↑↓” to select the item and then save the change.

Phoenixbios setup utility boot menu
Phoenixbios setup utility boot menu

After rebooting OS, if disk error occurred issue appears again, try the second way.

Way 2: Reset BIOS to Default

Disk read error can be solved by resetting BIOS to its default. Also in BIOS interface, under “Exit” tab, reset the BIOS by clicking “Load Setup Defaults”. The option also can be “Load Default Settings”, “Load Fail-Safe Defaults”, “Get Default Values” or “Load BIOS Defaults”, so select one according to your computer and BIOS version.

Phoenixbios setup utility exit menu
Phoenixbios setup utility exit menu

Way 3: Rebuild MBR

If MBR is damaged, the disk error issue may occur. So in this case, the important thing is to repair master boot record. A reliable third-party tool – MiniTool Partition Wizard Bootable CD is a good choice to rebuild MBR. This partition manager is designed to manage disk and partition when there is no OS or the OS fails to boot. You need to download MiniTool Partition Wizard Bootable CD and then burn it to CD/DVD or an USB flash drive.

Step 1: Plug this device to your computer and then set this device as the first boot order.

Step 2: Then Windows will go to MiniTool Partition Wizard main interface after a while. Here right click on the hard drive within OS, then click “Rebuild MBR”.

Hard disk build MBR
Hard disk build MBR

Step 3: Next click “Apply” button. After performing the operation, if computer still fails to boot, it is possible your hard drive is damaged.

Way 4: Test Hard Drive

Here MiniTool Partition Wizard Bootable CD still can help to check whether there are bad blocks on your hard disk. Just right click the target disk and select “Surface Test”. If some bad sectors are on the disk, Partition Wizard will mark them “red”. If not, all sectors will be marked “green”.

Hard disk surface test
Hard disk surface test

Once bad blocks are found, you need to take measures to shield them. Here making a backup for your important data is suggested to ensure data safety. Just ask MiniTool Partition Wizard for help with its “copy disk” feature.

In addition to the above four solutions, there are three other ways, such as checking IDE cables, testing RAM and reinstalling operating system. You can try them one by one according to the real case. For more information, click the article If A Disk Read Error Occurred in Windows 10/7/8, Try These Solutions. Hope it can help you.