Get fix for the “A disk read error occurred” error for the following Windows versions: Windows XP, Vista, 7, 8 and 8.1
Why A disk read error occurred appears
The “A disk read error occurred error” appears on a black screen without an identifiable error code:
A disk read error occurred
Press Ctrl+Alt+Del to restart
Pressing the Ctrl, Alt and Del keys will only restart the computer and boot into the same error screen:
In most cases the error can appear for any of the following reasons:
Incorrect or invalid MBR configuration
Improperly configured partition table
Faulty hard drive
IDE cables failing
Bad RAM memory
Issues with your computer’s BIOS version
The most common cases of this error are attributable to an incorrectly-flashed MBR to the system startup disk or the absence of an active partition on the startup disk. In these situations, the recommendations below should resolve the problem readily. If the problem is with hardware, additional diagnosis and the possible replacement of system components may be needed.
Fix with Easy Recovery Essentials
Easy Recovery Essentials can fix many errors such as this automatically using its built-in Automated Repair option. EasyRE is currently available for Windows XP, Vista, 7 and 8 and can be downloaded and created on any PC.
. Make sure to note your Windows version (XP, Vista, 7 or 8) before you download EasyRE. This guide can help you
you have installed.
Burn the image. Follow these instructions on
very carefully, as making a bootable CD can be tricky! Alternatively, these instructions explain .
Boot up your PC
or USB you created.
Once EasyRE is running, choose the “Automated Repair” option and click Continue.
Choose “Automated Repair” in Easy Recovery Essentials
After EasyRE scans your computer’s drives, identify and select the drive letter for your Windows installation from the list, and then click on the Automated Repair button to begin.
Choose the drive associated with the Windows installation you’re trying to repair.
Easy Recovery Essentials will start analyzing the selected drive for problems. EasyRE will test for and attempt to automatically correct errors with the disk, partition, bootsector, filesystem, bootloader, and registry. No intervention is required, as EasyRE’s repair is fully automated:
Easy Recovery Essentials searches for errors and makes corrections to the selected Windows installation.
Once the process is complete, EasyRE will report its findings. Click on the Restart button to reboot your PC and test the changes.
The “A disk read error occurred” error should now be fixed as your PC begins to load:
Windows, booting up successfully.
You can download Easy Recovery Essentials .
Other fixes for A disk read error occurred
You can try and fix the “A disk read error occurred” error by following any of these methods. These fixes can be applied to the followings Windows versions:
Windows XP
Windows Vista
Windows 8 and Windows 8.1
Windows 10
Windows Setup CD/DVD Required!Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use
instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below.
Fix #1: Check RAM memory
If you recently added new RAM memory to your computer, you can try to:
Remove the new RAM modules you’ve recently added
Leave only 1 single RAM module
Restart the computer
You can also try to move the single RAM module on a different slot to troubleshoot if any of your RAM slots are damaged. To do that, simply follow these steps:
Leave 1 RAM module on Slot #1
Restart the computer
If “A disk read error occurred” still appears, move the RAM module on Slot #2 and start the computer again.
Fix #2: Check Hard Disk Cables
If the error is caused by damaged hard disk cables, try any of the following tips to fix the error:
Try a different port for the SATA/IDE cables
If you have more than 1 HDD, leave only the HDD with Windows installed and test multiple SATA/IDE ports and cables
The “A disk read error occurred” error can appear if:
The SATA/IDE cables are damaged
The SATA/IDE ports of your hard disks are damaged
If the HDD cables and ports are not damaged, the issue can also be from the hard disk itself.
To test if your hard disk is failing or it’s already failed, use . Automated Repair process will report any issues found with your hard disk or RAM memory:
Burn the ISO Image. Follow our . If you’d like to have a recovery USB instead, .
Boot into Easy Recovery Essentials
Select Automated Repair
Click Continue and wait for the Automated Repair process to finish. Automated Repair process will report any issues found with your hard disk or RAM memory:
To download Easy Recovery Essentials, .
Fix #3: Reset or Upgrade BIOS
In some cases, “A disk read error occurred” can be fixed by either reverting your BIOS to its default settings or upgrading BIOS to the latest version available for your computer.
To revert your computer’s BIOS to its default settings or default configuration, follow these steps:
Restart the computer
Press the key to boot into BIOS. This is usually any of the following keys: F2, F8, F12, Esc or Del. The key you need to press will be listed at the first screen when you boot your computer:
Once booted into BIOS, find a “Load Defaults” options. The option name to revert to default settings can be different, depending on your computer manufacturer and BIOS version:
Load Fail-Safe Defaults
Load BIOS Defaults
Load Default Settings
Load Setup Default
Get Default Values
Select to revert the settings and hit Enter to select the option
Exit BIOS by saving the changes
If reverting to BIOS defaults doesn’t make “A disk read error occurred” disappear, you can also try to update the BIOS version to the latest available.
Fix #4: Run chkdsk
The chkdsk utility checks for hard drives integrity and can attempt to fix various file system errors.
To run chkdsk on a Windows XP system, follow these steps:
Insert the Windows XP CD and boot from it
At the Windows Options screen, press R to open Recovery Console
At Command Prompt, type the chkdsk command:
chkdsk C: /r
Make sure you replace C: with the drive where Windows XP is installed
Press Enter
Restart the computer
To run chkdsk on a Windows Vista or Windows 7 system, follow these steps:
Insert the Windows Vista or Windows 7 DVD and boot from it
At the Install Windows screen, select Repair your computer to access System Recovery Options
Once at System Recovery Options, select Command Prompt
Type the same chkdsk command as that of Windows XP:
chkdsk C: /r
where C: is the letter of the drive where Windows Vista or Windows 7 is installed on
On Windows 8 or 8.1, chkdsk can accessed through the same steps:
Insert the installation media (DVD or USB drive) and boot from it
Select a language, keyboard method and time
Click Next
At the Install now screen, select Repair your computer or press R
Navigate to Troubleshoot & Advanced Options
Click Command Prompt
Type the chsksk command and press Enter:
chkdsk C: /f /x /r
Replace C: with the drive where Windows 8 is installed
Fix #5: Run bootrec
If chkdsk doesn’t fix the “A disk read error occurred” error, you can also try to run the bootrec utility in order to fix damaged or corrupt BCD files.
If you have a Windows XP system, run the bootcfg utility. Bootrec is only available for Windows Vista, 7, 8.
Insert the Windows XP CD in the disc tray and boot from it
Press R to access Recovery Console
At Command Prompt, type the bootcfg command:
bootcfg /rebuild
Press Enter
When bootcfg finishes the procedure, type exit and hit Enter to exit Command Prompt
Restart the computer
If you have a Windows Vista or Windows 7 computer, run the bootrec command by following these steps:
Insert the original install media and boot from it
Click Repair your computer
Once at System Recovery Options, select Command Prompt
Type the bootrec commands and press Enter:
bootrec /rebuildbcd
bootrec /fixmbr
Press Enter
bootrec /fixboot
Press Enter
Restart the computer
If “A disk read error occurred” appears on a Windows 8, run the same bootrec utility:
Boot from the installation media
Click Repair your computer or press R
Click Troubleshoot
Click Advanced options
Click Command Prompt
Type the commands and press Enter after each:
bootrec /rebuildbcd
bootrec /fixmbr
bootrec /fixboot
Type exit and press Enter to quit Command Prompt
Restart the computer
Linked Entries
Support Links
– our repair and recovery disk.
It’s an easy-to-use and automated diagnostics disk. It’s available for ,
and . It’s also available for Windows XP and Windows Server.
Read more at .
, member-to-member technical support and troubleshooting.
Get a discounted price on replacement setup and installation discs: , , , .
Applicable Systems
This Windows-related knowledgebase article applies to the following operating systems:
Windows XP (all editions)
Windows Vista (all editions)
Windows 7 (all editions)
Windows 8 (all editions)
Windows 8.1 (all editions)
Share this
Related Articles
Fix guides for common boot errors
Startup blue screens?
Disk corruption?
Registry failure?
Virus infections?
Bootloader issues?
And more!?
Send to Email Address
Your Email Address
Post was not sent - check your email addresses!
Email check failed, please try again
Sorry, your blog cannot share posts by email.正睿科技&&发布时间： 10:11:52&&浏览数：16207
原因现象：开机提示A disk read error occurred Press Ctrl+Alt+Del to restart这个如何解决？
原因分析：很明显是硬盘读写出现错误，用排查发进行解决。
解决方法（依次排查）：
1、然后进BIOS，对硬盘的启动项进行设置，把A的顺序放到最后，同时关闭A。
2、将硬盘的接口重新换一个接口位置，看看是否正常。
3、更换一条硬盘数据线，看看是否正常。
4、利用专业工具，检查硬盘是否坏道，如果存在坏道，那么需要重新分区。
5、这时候几乎可以认定硬盘坏了，需要更新硬盘或者拿去维修。
正睿合作伙伴
合作伙伴产品库
阅读我们的博客
技术支持论坛
| 通告 | 400电话:
CopyRight(C) Chongqing Zhengrui Technology Co.,Ltd. All rights reserved.
重庆正睿科技有限公司(C)版权所有 未经书面授权 不得转载、复制或建立镜像电脑正用着卡死了，重启后提示a disk read error occurred，怎么解决？_百度知道
电脑正用着卡死了，重启后提示a disk read error occurred，怎么解决？
com/zhidao/wh%3D450%2C600/sign=caef155d7cf40ad115b1cfe/b7fd6b8c807ed30735fae6cd342d://a;
来自团队：
其他类似问题
 4;6。&#160，然后进BIOS。问题一般出在硬盘连接线和硬盘坏道上，再重新插拔一下光驱数据线，在启动顺序中把A盘启动给关闭了。&#160，清除上面的灰尘和硬盘上的灰尘.写引导区错误.BIOS设置中将“防病毒保护”设为启用;3。）&#160，关闭“防病毒保护”，进BIOS。如果是这个原因，慎用.第四种可能性最大;1。将BIOS恢复成默认:磁盘读取错误;意思为，或者换一条光驱数据线;5。如果是出在连接线上，要是还不行就是硬盘坏了;2。建议先试一下,升级BIOS可解决&#160.用FDISK重新分区（数据将会被清除，再插回去或更换连接线即可解决。&#160.部分技嘉主板会出现此BUG;引起这个问题的原因有很多“A disk read error occurred”&#160。 7。硬盘读取错误。&#160，只能维修了，拔下连接线.检查软驱中是否有软盘！&#160，一般重装系统就行了.硬盘出现问题
来自团队：
为您推荐：
其他2条回答
硬盘的数据读取的问题。2，拔下内存条用橡皮擦擦金手指、内存的问题，最好的办法，把系统重新做一下,可以尝试下面方法进行，建议进行下磁盘扫描或者碎片整理：1一般有两种情况造成的，然后再装上
系统有问题，建议重装系统
等待您来回答
下载知道APP
随时随地咨询
出门在外也不愁开机出现A disk read error occerrud，原因是因为我重装系统，本人菜鸟一个，_百度知道
开机出现A disk read error occerrud，原因是因为我重装系统，本人菜鸟一个，
原因是因为我重装系统，本人菜鸟一个.com/zhidao/pic/item/2cf5e0fea6989a5ddf8db1cb13703d;read&nbsp.baidu.jpg" target="_blank" title="点击查看大图" class="ikqb_img_alink"><img class="ikqb_img" src="http.hiphotos开机出现A&nbsp://d://d.jpg" esrc="http，也看不懂./zhidao/wh%3D450%2C600/sign=3bd0a516af08ced3fd57bf/2cf5e0fea6989a5ddf8db1cb13703d;error&disk&nbsp，求高手帮我解答<a href="http.baidu://d;occerrud./zhidao/wh%3D600%2C800/sign=ba1c2df93adbb6fd250eed/2cf5e0fea6989a5ddf8db1cb13703d，刚刚看了很多解答都是bios的
再装一个硬盘上去装好系统开机。我想你不能重装系统就是因为上面有资料吧哎，把重要资料读出来保存起
或是你把这硬般取下来，装在别的电脑上，你把这硬盘取下来，再把你原来的硬盘装上撒
有没有别的办法了，我不太懂这些，而且我电脑刚买不久没有什么重要的资料，无所谓的
其他类似问题
为您推荐：
重装系统的相关知识
其他2条回答
这个是Biss的界面,你最好还是送修
我刚刚看了很多办法，貌似都要在这里弄，可是我点不了那个bios
送修,自己不要搞
不要再搞了,白天送修
UEFI模式不对
你就直接告诉我需要我怎么做吧
UEFI应该是win8的磁盘格式，你装的什么系统
我原来是win7.32位，然后我就想着搞到64
都是GHOST系统吗
用光盘还是PE
修复一下启动项，应该可以了
我用虚拟驱动
我要怎么做？
嗯，应该是吧，
下好了就单单一个光盘的东西
U盘还是光盘
我下了一个深度装机的
怎么装的，说说
就是下好了，用虚拟光驱打来阿
到网上下一个电脑店，U盘装机，用U盘装吧，你哪个回不去了
你有几台电脑？
能用的电脑下载一个电脑店软件，把空U盘插上，用软件把U盘装个PE，用PE的U盘引导坏电脑进U盘PE系统
等待您来回答
下载知道APP
随时随地咨询
出门在外也不愁