Hard Disk

Hard disk failures are the most common computer hardware problems. And laptop hard disks fail more often than desktop HDs. If you knock hard or drop your laptop even a few inches while it’s working, you may damage the HD.


  • The laptop starts as usual but when Windows starts to load it goes to blue screen with either “UNMOUNTABLE_BOOT_VOLUME”, “hal.dll is missing or corrupt” or “WINDOWS\SYSTEM32\CONFIG\SYSTEM” (or similar) is missing or corrupt. All these error messages indicate a filesystem problem. Sometimes it can be fixed by just scanning the HD for errors. However in over 50% of the cases these errors indicate that the HD is starting to go bad and is probably developing bad sectors.
  • The laptop starts as usual but Windows freezes on the initial “Windows XP” screen, although the blue bar continues to move, and you can hear feint but continuous clicking. Hard disk have to be replaced.
  • As soon as the laptop is started there are loud clicks or grinding sounds and Windows doesn’t load. Hard disk have to be replaced.
  • Shortly after starting the laptop a message appears (usually on a black screen) “SMART test failed. Backup your data immediately and replace the hard disk” or similar. Well, that says it all. S.M.A.R.T. is a self-test that is build into the hard disk.

In almost all cases the laptop can be started from a “live” bootable CD and everything works normal. In rare cases the HDs PCB (printed circuit board) may short or even burn. Then the laptop wouldn’t start unless the HD is removed.


The first case from above (corrupted filesystem) is by far the most common. There are several ways of diagnosing and fixing the corrupted/missing files. If this was just a software problem, the hard disk will continue to work properly. However keep in mind that this may also be a signs of deterioration and backup daily!

Also the hard disk will need some preventive maintenance. Check it for errors every few days or at least every week. To do that you must be logged in an admin account, then right-click the “C” drive in “My Computer”, select “Properties”, then “Tools”, then click on the “Check Now” button. Select both boxes and click on “Start”. Windows will tell you that the hard disk cannot be checked now but you can schedule a check for the next restart. Click “OK” and restart the laptop. The check will take from about 30-40 min. to over 2 hours, so do it when you’re not planning to use the laptop for some time.

145 thoughts on “Hard Disk”

  1. My PC decided to restart, once it finished every time I switch it on I just get a blank screen with a courser.
    Did the system diagnostics and it says “Disk Failure 1”. I dont know what to do.

  2. Oh ! Help the laptop fell from my lap . The screen started but it shows on a blue screen hard disk crash error . It shows restart the laptop. How …

  3. Hey, yesterday when I turned on my laptop, i got the messege “A disk error has occured”, i could not boot my windows usb. Today, I turned my laptop on again, I installed my windows, so that means my hard disk is quite okay, but my ventilators go nuts, and there is only a small ammount of heat coming from inside the laptop. Can I be clarrified if my hard disk is damaged and need to be changed? Or this could be, by any means, caused by something else?

  4. smart test:passed
    DST test: failed

    i use hp 450 laptop . i can not install windows .at the end of installing windons show that ” we can not update boot configuration , install process is not saved.
    please help me how i can fix it…

  5. I have a toshiba laptop . When i open it show BOOT MENU OR FIND MEDIA BOOT TO RECOVER . But its failed . How can i fix it ?

  6. I m using hp presario cq43 and got problems it’ll function. I can’t find the problem because system can’t reach me in bios setup it would turn off without warning display off after 4 or 5 second the power lights off.
    With sound I heared from hard disk as disconnected like “tikk” then I remove hard disk then open laptop again same problem I can’t stay in monitor they got turn off without warning.
    I can’t able to operate troubleshooting diagnosis. Wht I do I has been also removed ram bt system can’t open.

  7. i ma using an dell xps.After staring my pc its works fine for 10min and after that it frezes the system and the functionality works slowly ande frezes for some time and i am also not able to rebopot my system.

    1. its your hard disc i had the same problem with a customer’s laptop, you better do a back up now because i tryed all the windows repair that was possible i reinstalled windows… and the hdd died on me right after couldnt go furter vthen the repair window!!

  8. when i open my laptop it tells me to install operating system and the memory.hard disk and start up test fails..please help if in a possition

  9. my laptop is failing to boot. it starts normally but when it is about to display: start normally, safe mode bla bla it just switches off. is this crashing? what should I do

    1. Try installing a new operating system OS because most of the time when a PC display safe mode start normal or safe mode recovery it means windows is corrupted

  10. Hi. My Medion laptop hard drive after a complete re-install keeps filling up. Only Windows and a few files on the hard drive. Only about 3 gig installed but it is reading 60% full. Each time I turn it on more space is used up. 2007 model using Windows vista. 80 gig hard drive. I have tried another hard drive. Same thing happens. Hope you help. Thanks

  11. As I was enjoying my newly bought laptop, all of the sudden it just displayed hard drive not found please what can I do?, or is it that the hard drive got damaged just like that?.

    1. I would just remove the hard drive then put it back on. Otherwise, bring it back to the store if is brand new as you mention. You have a one year warranty. Good luck

    1. If you have a spare monitor connect it. Then press F5 to switch over to the monitor. If this works then you have a bad converted or the ribbon cable came loose inside due to vibration.

Leave a Reply

Your email address will not be published.