A disk read error occurred. Press Ctrl + Alt + Del to restart” error pops up while some users boot Windows 10. Even your try to restart your computer by the prompt, the error still exist. It’s a very annoying problem and there’s no set fix for it since different reasons can cause it. However, with the help of our technical support and some users’ report, here we got some tried-and-true ways for you to fix the error.

Thus make sure to try the following methods if you encounter A disk read error occurred on your Windows 10.

No.1–Unplug any USB or DVD drive

No.2–Shut down your computer and cool it down for several hours

No.3–Reset your BIOS

No.4–Check your hard drives’ cables

No.5–Test RAM memory

Way 1. Unplug any USB or DVD drive

If you have plugged in any movable flash drive like USB or DVD, make sure to unplug them and the try to reboot your Windows 10. Then check if the error still occur.

Way 2. Shut down your computer and cool it down for several hours

Once A disk read error occurred pops up on your Windows 10, shut down your computer. And cool down for a few hours like 5-8hrs to give it a rest. Then turn on your computer to see if you can access Windows 10 correctly.

Way 3. Reset your BIOS

Reset BIOS manages to fix A disk read error occurred error, so be sure to take it a try if Neither Way 1 nor Way 2 serves you.

Shut down your PC meanwhile pressing Shift key.
Press power button to restart your computer and at once start tapping F12 till BIOS screen pops up.
Note: The key to enter BIOS usually is F12, but also could be F1, F10, Del, etc. Just look carefully on the screen while computer starts.

Under Exit pane of BIOS screen, use arrow key to choose Load Setup Defaults to reset your BIOS. 
Press Enter.
Then click YES when asked to confirm the setup.
NOTE: For different computer, the option to reset BIOS could also be Load Fail-Safe Defaults, Apply Default, Load BIOS Defaults, Load Default Settings, Load Setup Default, Factory settings, etc.

Use arrow key ↑ & ↓ to choose Exit Saving Changes to exit BIOS.
Restart your computer to check if you can boot into your Windows 10 now.

Way 4. Check your hard drives’ cables

The cables connect your computer’s hard drives to your computer’s motherboard under its hood. If the cable is loose or defective, disk errors may occur. In this case, open your computer’s hood and check if each cable is fastened on both ends. Replace the faulty cables If there is something wrong to fix the error.

Way 5. Test RAM memory

RAM(Random Access Memory) problem brings about various issues. As the RAM memory test is easy and non-destructive, you may as well do a complete test for RAM memory to fix disk error.

Case 1. If you added new RAM memory to computer recently, try to remove it and leave only one RAM. Then restart computer to check if the error still occur.

Case 2. Leave one RAM module on one slot and restart computer. If disk read error still occurs, move the RAM to the other slot and start computer again.

If unluckily A disk read error occurred still exists after you tried all the ways above, you can try to do a clean install of Windows 10

16 people found this helpful