Disk read error has occurred...press ctrl al [Solved]

This is one of the most frustrating error messages you can ever deal with. Sometimes the fix is simple, sometimes it's a complete pain. Having recently dealt with this again, I thought I'd post my thoughts in the hopes that it helps someone else out there.

So you receive the dreaded "a disk read error occurred. Press Ctrl+Alt+Del to restart". Multiple restarts result in the same error message.

If you put your drive into another computer, or connecting it as a slave on your own computer, it will typically work fine, and no data is missing.

Because this error is not usually associated with data loss, DO NOT RE-PARTITION THE DRIVE. Your data is likely safe and sound.

Here's how we'll recover your data. Try each step below, in order, and see if your drive becomes accessible after each step. In my experience, you won't start seeing results until step 5 or so.

1. Run CHKDSK /R /P from the recovery console (it will typically find no error)
2. run FIXBOOT from recovery console (typically has no result)
3. run FIXMBR from recovery console (typically has no result)
4. Run the manufacturer's diagnostic utility, downloaded from their website (it will typically find no error)
5. Changing the drives from cable select to Master/Slave may fix it.
6. Replacing the data cable may fix it, but usually not.
7. Setting the BIOS to use defaults may fix it, but usually not.
8. Changing the BIOS drive settings from auto to user-specified, ensuring that LBA is selected may fix it.
9. Pulling the CMOS battery to let the BIOS lose it settings may work.

At this point, you may be feeling some frustration. :-)

If all that fails, here's what will usually work:

Ghost your data to a new drive, and use the original one as a slave. It will work. And all of your data will still be accessible. Your computer should boot normally. If it doesn't, or it there are errors, run the Repair Installation option from your Windows boot CD.


But why does this happen? Nobody seems to know why. The problem typically evades all forms of detection.

Here's what I've learned: this error message likely has more to do with a hardware interaction between the drive and your system than any actual issues with the drive. To put it one way, your motherboard and drive are no longer on speaking terms.

I don't know why the original disk has no problems being a slave. Perhaps it got tired of running the show. Perhaps it's preparing for retirement.

I hope this helps!

Peter

Here's the answer: these Dell laptops can only use about 120 GB hard drives. If you've installed a larger drive, once you reach the 120 GB threshold (even if it's just due to fragmentation) it won't boot. Don't ask me why. You can solve this problem, without reformatting, by taking your hard drive out, plugging it into another computer with a USB enclosure (very very cheap), deleting or moving some large files, then defragmenting. This drove me crazy for a long time until I found out the answer. The reason it takes 2-5 months is, that's how long it takes you to accumulate that amount of data.

Yesterday I bought a 500G 7200rpm Toshiba HD for my Lenovo T400. When I install XP, after all OS XP files were copied onto new HD, it went to restart from HD, then I got this kind of message:

A Disk Read Error, please press Ctrl+ALT+DEL restart....

I put HD into a USD enclosure, all file on C/windows can be accessed, because I could use achieve to compress all files into one files.

When I installed Xp onto new Hd, I had three partitions, and I used quick format all partition with NTFT format. I thought it was partition issue or format issue for the HD.

Then I only used whole HD as one partition(500G), then used normal format(not quick one), (it took about one hours), then all problems solved, after this successful Xp installation, I went back to make C partitions 120G, and only quick format this C partiton, and it was still successfully to install XP.

I am not sure which is the root cause of "A Disk Read Error, please press Ctrl+ALT+DEL restart....", in my case:
a) quick format not really mark the bad sector of HD?
b) at first the OS did not know which partition it should use to restart,

Anyway I hope these experiences would be helpful for the guys in the same situation, just as one guys said
" A Disk Read Error, please press Ctrl+ALT+DEL restart...." may have thousands reason....


Good luck to all guys in this forums,

I encountered this type of problem in one of my units in my internet cafe 15 minutes ago.

I was about to do the things listed here to try and fix the problem. But luckily, before I did, I decided to open up the CPU, pull out the power and SATA cable of the HDD, pull out the SATA cable for the SATA port as well. I then re-plugged both cables into the HDD and switched from the original SATA port it was plugged in to another that was available.

I was amazed that it worked. Now, computer's running as it used to again waiting for the next customer. ^_^

Hello,

I'm having the same problem also. I bought an external HD and when i plugged into my Dell Laptop, the system froze. I turned off and when I restarted i got the Disc Error Occurred message - to press Ctrl+Alt+Del. And when the laptop restarts, it goes back to that message. What do I do? I don't want to lose all my files in the laptop, as this is why I bought an external HD, to store all these files. Please help... Thank you!

Email Id removed for security

Replace the Power Supply on your PC.

Delete all partitions and do a clean Windows install.

Hello guys, from what ive learnt the disk read error, is created either not enough power getting to HDD, and low power could cause HDD to make 'mistakes' and corrupt its self. and te other more plausable culprit is partitioning/formatting. if you partition or edit a HDD , and files are all over the place, sometimes the boot sequence gets messed up. and if the computer cant find the boot files, it will just read the HDD as files and not a bootable option, bios ( boot) cannot read a windows OS unless it has instuctions to do so, thus creating a disk read error, for those of you who NEED thier files or some of them, download a windows 7/Vista recovery Disk , jus google it u will find one soon enough :) its about 150mb and it will load up like your installing it but the option to repair it will be there, when it says load drivers ( also displays your OS above) click load, and seard for your self. now it will open a box , and in there you can explore your entire hard drive.. cut, copy, delete, paste. plus in your external HDD or CD/DVD and copy the files onto it . now it wont have a copying dialogue box but it is doing it, i assure you. large files will takes a while ofcourse and u may be tempted to stop it . but u can test that it works on a small file.

After all files are backed up you will now have to erase all partitions / HD structures etc. anything that caused the fault in the first place. to do this you can use various prorams like KILLDISK DOS program, burn to CD and run it at boot. it will load up its own interface and give you plenty of custom options to erase data to its factory settings ( lots of 00000000) but you want the entire drive gone for it to work , or anything u reinstall will be prone to read errors because of the way its setup previously.. it will take 20 mins per 100gb, so if u got 500 gigs, it will takes 140mins

finally once HDD is back to its factory settings, insert your installation disk and , set ur partitions, drives up and install. now your good to go i hope this helps everyone in this forum!

Hello everybody,
Same problem has also occurred for me.Please change the power plug cable and try.This worked for me and my system is running smoothly....Try this one and you don't need to format any thing...

it is a simple problem indeed.
i think it was happening because of 'error format drive data'. OS cannot read which drive should be primary active,so it cannot read where the OS installation is.
the simple waya to fixed it :
1. change ur HDD as a slave on another HDD
2. format ur 'primary active' drive on the slaved HDD (the trouble one) using advance software like Partition Magic or Acronis Expert, and make sure u format it as 'primary active' not just primary or even logical drive.
3. install ur OS.
i've try this one and no same problem is back,
of course u still can copy ur data on 'primary active' drive before format it :)
have a nice try :)

I had the same problem only I had just purchased a brand new hard drive and a brand new version of XP Pro....I cnanged out the power cable and then checked the connector to the new drive...the two that connect to the drive itself, the ribbon one and the smaller pin one.....I took them off and pushed them back in and made sure they were really connected tight...I rebooted the computer and then it started working.....

This could be as simple as a connector that is loose or crappy..................hope this helps...it just helped me stop pulling out my hair.....check the connectors to the hard drive ...off and then back on...make sure they are snapped into place as they have a ton of those pins......................

I had the same error with my hard disk 3 days ago. I had this error with my previous hard disk and was replaced with new one. New one is a segate. Previous one is a hithchi. I was confused and went to meet the seller with the hard. Then We found that there was a error with my C drive in which windows xp was installed and also it is not accessible. Other paritions were secured and allowed to access their data. After that I came home and foramt C drive and installed windows XP again. Then Hard was working properly. But Unfortunately I went away from the machine for some time and came back. Then I realized machine has a problem again. I pressed keys but machine did not respond. I restarted the machine. Same data disk error happened. I opened the case, checked the power cable, kept them tight with the hard disk and resart the computer. Marvelous It is working smoothly. I think this error comes with an error in power cable or sometime it may be with a virus.

Pls setup in FAT Quik format I think u will be get over come this problem.

Here's how we'll recover your data. Try each step below, in order, and see if your drive becomes accessible after each step. In my experience, you won't start seeing results until step 5 or so.

1. Run CHKDSK /R /P from the recovery console (it will typically find no error)
2. run FIXBOOT from recovery console (typically has no result)
3. run FIXMBR from recovery console (typically has no result)
4. Run the manufacturer's diagnostic utility, downloaded from their website (it will typically find no error)
5. Changing the drives from cable select to Master/Slave may fix it.
6. Replacing the data cable may fix it, but usually not.
7. Setting the BIOS to use defaults may fix it, but usually not.
8. Changing the BIOS drive settings from auto to user-specified, ensuring that LBA is selected may fix it.
9. Pulling the CMOS battery to let the BIOS lose it settings may work.

At this point, you may be feeling some frustration. :-)

If all that fails, here's what will usually work:

Ghost your data to a new drive, and use the original one as a slave. It will work. And all of your data will still be accessible. Your computer should boot normally. If it doesn't, or it there are errors, run the Repair Installation option from your Windows boot CD.


But why does this happen? Nobody seems to know why. The problem typically evades all forms of detection.

Here's what I've learned: this error message likely has more to do with a hardware interaction between the drive and your system than any actual issues with the drive. To put it one way, your motherboard and drive are no longer on speaking terms.

I don't know why the original disk has no problems being a slave. Perhaps it got tired of running the show. Perhaps it's preparing for retirement.

I hope this helps!

Hi I had this problem with a Compaq nx7010 in which I had replaced the previous hard drive, with a wd 160Gb drive about 2 years ago. I was reluctant to believe that I had to do a whole restore, as the diagnostics all ran well on the drive and I could see that all the data was intact. I tried fixing the mbx records, fixboot etc. I tried everything that I have read on this and other forums but no good until I remembered on obscure comment on a list somewhere. I put the disk into another machine. (I have a desktop pc with a cable adapter from 3.25 inch to 2.5 inch ide which I bought off the net for this purpose.) I then went to properties on the drive under windows, Tools and ran the defragger. Analyse said it did not need defragging and showed blue data with a small white space to the left. I defragged anyway and it did do a small amount of work and the white gap to the left was smaller when it finished. I shut down and moved the drive back to the laptop and bingo she boots. You bl...dy beauty. So it seems that when a drive gets itself into this state nothing will fix it except a defrag of some of the early blocks of the disk. Microsuck don't tell us about this anywhere as far as I can see. SOLVED!!

I ended up doing almost the same thing that you described to start. I pulled the drive and connected is as an external USB drive and ran many utilities--all showing the drive to be healthy. I may have run defrag, too, but I don't remember that offhand. I wanted to do everything before trying the drive back in the computer since it wasn't that convenient to swap it back and forth. I followed advice on one site to use Easeus partition software and make a smaller system partition, leaving the rest of the space as raw until later. Once the partitioning change was done (it took a long time) I had a 40GB primary partition with all data and the OS intact. I put it back into the Gateway, took out the CMOS battery for a few minutes, and then booted. Once I re-entered the time and date in the BIOS I checked the IDE drive information. It still read 137GB so I was disappointed, but it did boot to Windows. Then Windows launched a "found new hardware" routine and detected the 40GB partition as drive C. Disk Management showed the raw space so we're back in business for now.

I'm running win7 and get a disc read error when I try to start. I have to run alt-control-del several time to get to win7 screen.

When I want to delete file drive C , it happen that ' make sure you have proper permission ', and when I want to change access control permission in drive C ,It happen that 'An error occur while applying to change access control.

oh hello got the same prob really stuk i think you need to press ctrl alt delete and the the power button it woked for me hope id does for you as well

You will need to replace the hard drive and reinstall Windows. Good Luck