I have a Dell D600 laptop which is now about 6 years old. In 2008, I\nupgraded the hard drive from the original 80 GB Fujitsu drive to a\nWestern Digital 160 GB drive (NTFS formatted). Until last week all\nhad been well with the system (the full hard drive was recognized by\nWindows XP Pro SP3 even though it was identified as a 137 GB drive by\nthe BIOS, and it booted just fine).\n\nThen, upon rebooting I received an error message "A disk read error\noccurred. Press CTRL-ALT-DEL to restart." I retried to boot several\ntimes and received the same message. On the chance that the MBR or\nboot files had become corrupted, I tried to run the restore utilities\nfrom the Windows installation disk, but the Windows installation would\nnot load completely.\n\nTo remove the CD/DVD drive as the source of the problem, I loaded a\nlive CD installation of Kubuntu which did just fine. It even found\nthe files on the hard drive. Likewise, gpartd was able to see the\ndrive and the files on it.\n\nI could install the drive in an Apricorn EZ-Upgrade device and read\nthe files on the drive via a USB connection to a desktop computer. [I\ncopied over my working files just in case.]\n\nI also used Western Digital's tools to diagnose the disk, but no\nproblems were found. I did a memory test of the laptop, and no\nproblems were found.\n\nFinally, I reinstalled the old hard drive and used the Windows XP\ninstallation disk as though I was going to install the OS on the\nFujitsu drive (it had been wiped clean). The installation routine\nstarted just fine with this hard drive.\n\nI also tried to use a Windows 7 trial disk to see if the drive could\nbe recognized, but it did not see it.\n\nSo, I have a hard drive which can be detect by a working Windows\ninstallation, which can be seen by a live CD installation of Kubuntu,\nbut which will not boot and which will not serve as an installation\ndrive for Windows.\n\nDoes anyone have any ideas?