Hard disk drive not detected

If the BIOS detect the hard disk, re-partition it.

Since it's an IDE hard disk, you'll have to setup disk jumpers, please check the following image:
If you want more information please see the installation guide at the following link:
http://www.hitachigst.com/tech/techlib.nsf/techdocs/4DD4DCCA11DE5EB186256D6A0061C8A8/$file/Installposter.pdf

The hard disk is not detected, inaccessible or unreadable because of possible hardware failure, corruption and/ or I/O errors.

To troubleshoot this issue, restart the computer or rescan the disk to try and return the disk to Online

To rescan the disk, open Computer Management, and then click status. Disk Management. On the Action menu, click Rescan Disks.

Just make sure ide cable is fixed properly to the hard drive when scanning.

there was wrong in the set up of jumper in your 80gb hdd. Look closely to the 80gb harddrive, in between the ide cable terminal and the power supply connector you will see 8pin terminals paired together and a jumper use to short the paired terminals. It is most likely that the jumper was configure to detect your hdd as master. If the ide cable you use for the 80gb hdd was also use for the dvd/cdrom drive then it will conflict with it if both jumper setting was set to master. See the description of jumper settings in the sticker of the hdd. Position the jumper to slave.

Reboot your system again and see if the 80gb finally appear in your system. When system boot upon detection of hdd, the primary master should be 250gb while your primary/secondary slave will be read your 80gb hard disk.

i have a Hitachi external USB hard disk 320 GB it was working fine at may laptop but when i tried using it with the computer ; the windows cannot detect the USB Drive . i tried it with 2 computer . but its still the same .pleas help i badly need my files

Yes it is possible to data recover from this hard disk to using "active partetion recover v2.0 or above" software. This software should be registered and also bootable disk. It will be possible to data recover, if it will be detect in dos mode.

Procedure:
Insert the bootable disk into CD-Rom and choose boot from the cd rom and now check your disk is detected or not, if detected follow the instruction and your all data could be recover with your complete partions.

Good Luck

Sounds as if your hard disc is failing

check the jumper settings of the hard disk and power , bus connector

Tried a differant SATA power inout into it? Is it making a clicking sound?

Hi, What the message mean is that Windows can not read/understand the filing system (something like the Table of Contents in a book) and therefore do not which and where are your files in the 80Gb. A few things you can try: 1. Run Windows Scandisdk on the Hitachi 80Gb; 2. Run any third party disk check/utility such Norton Disk Doctor. Alternately, you can use a file recovery software (such as GetDataBack) to recover/copy all your important files from the 80Gb and transfer them to another mass storage device. Thereafter, you can re-partition and re-format the said Hitachi to start new/fresh/clean. Hope this be of some help/idea. Post back how things turnes up or should you need further information. Good luck and kind regards.