The Bios not see the Hard disk - Toshiba Satellite M55-S325 Notebook

If the BIOS does not detect the hard disk, then reseat the hard disk and then check the BIOS again.
The hard disk maybe faulty, if so you need a replacement.
If the BIOS detects the hard disk and you are installing Windows XP then -
The problem is that XPinstallation CD does not have a SATA driver, unless you have a SATA drive on adisk etc. and can install the driver when XP asks for a hard drive driver then,XP cannot detect the hard disk and therefore won't install XP.The FIX.Go into the BIOS anddisable the SATA drive (enable IDE emulation), this will make XP think it is aIDE/PATA hard disk. Then you can install XP normally. When Windows hasbeen installed then install all the device drivers (including the SATA driver),then shut down and boot up and got into the BIOS and enable the SATA drive.

Follow the steps given below.

1) First, check your hard disk cable, I recommend you to replace the Hard Disk Cable.
2) If the BIOS doesn't detect your Hard Disk after replacing Hard Disk cable try upgrading your BIOS from the Dell website.

The clicking sound most likely is the hard disk. It is probably faulty (known as the click of death).
Go into the BIOS configuration and see if the BIOS detects the hard disk. If the BIOS cannot detect the hard disk then the hard disk is faultu.
To get you PC operating again, replace the faulty hard disk, install Windows on the new hard disk plus the HP's motherboard device drivers and your programs.

It appears your hard disk has failed. Go to the BIOS configuration and check if the BIOS detects the hard disk, if not then re-seat the hard drive and then check the BIOS again.
If the BIOS still cannot detect the hard disk then it is faulty.
To get your computer working again, replace the hard disk, install Windows on the new hard disk plus the motherboard's device drivers and your programs.

This issue is often caused by either an incorrect setting in BIOS or a bad boot device, such as a bad hard disk drive.

Try this:

Verify that your hard disk drive is setup and detected properly in BIOS. You're computer should list a hard disk drive installed either under the main page or the drives page in BIOS. If BIOS indicates the drive is not installed or not detected skip to Hard Disk drive is bad or not connected properly.
Verify the boot options are properly set in BIOS, almost all BIOS setups should contain options specifying how your computer boots. For example, most computers should have their boot options setup similar to the below example.

- Floppy drive
- CD drive
- Hard drive

Rest your BIOS to default values. Many BIOS will enable users to reset the values to the default settings. If you've tried the above options without success try resetting the BIOS.

Boot from either your emergency repair disk, your bootable Windows CD, or your bootable restore CD.
Once boot attempt to repair Windows. If you're able to repair Windows remove the disks and reboot the computer.

If the above fails:

Verify the connections are properly connected to the computer if the hard drive was recently installed or the computer was moved.

If all connections are setup properly and all the above recommendations have been attempted, it is likely that the hard disk drive is bad and it will need to be replaced.

Let us know how it works out.

Not good. Check your bios for correct drive for boot up, but it sounds like yoru hard drive is not being read....

The problem could be one of these -
The hard disk needs reseating to make proper electrical connection.
or
The hard disk is faulty.
or
The BIOS has not detected the hard disk.
or
The hard disk controller is faulty

To determine the fault -
Reseat the hard disk and boot up the laptop.

Check the BIOS configuration - does it detect the hard disk. The BIOS may have a hard disk diagnostic, if so then run the diagnostic.

For a further hard disk test - remove the hard disk and connect it to an USB hard drive adapter and plug it into a working computer's USB port. If the hard disk is OK then this computer will detect it as an external hard drive and you can open the folders and files.
If not then the hard disk is confirmed faulty.
To get the Gateway working, install a new hard drive and install Windows, the laptop's device drivers and your programs.

What specific message do you get when you try to boot from the HD?

your hard disk is disconnecetedor loose . pls check the hard disk power cable & IDE or SATA cable. Then check BIOS hard disk detected or not if hard disk is not detected your hard disk is faulty.

ohhh..not too cool..reboot and press F2 during logo logon..and then reset it in there..