I have laptop hp compaq 6710b, it cannot boot & hard disk not detecting.

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Press F9 at startup. This will give you your boot menu. You will then be able to boot from your dvd-rom / upgrade bay etc.

First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty.
Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

Causes

1. Computer is booting from a non-bootable source.
2. Computer hard disk drive is not properly setup in BIOS.
3. Corrupt NTLDR and NTDETECT.COM file.
4. Misconfiguration with the boot.ini file..
5. Corrupt boot sector / master boot record.
6. Seriously corrupted version of Windows 2000 or Windows XP.
7. Loose or Faulty IDE/EIDE hard disk drive cable.
8. Failing to enable USB keyboard support in the BIOS.

Solutions

Computer is booting from a non-bootable source

Many times this error is caused when the computer is attempting to boot from a non-bootable CD-ROM. First verify that no CD is in the computer, unless you are attempting to boot from a CD.

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The hard disk got damaged and it's dying - the boot take longer because the boot sector was damaged and it had to be relocated.
Create a reinstall disk with the utility HP has installed in the laptop, buy a new hard disk and install it and then reinstall Windows with the disk you created.

Hi there,

Try going to http://www.support.hp.com and then look for the model number of your computer

or check this link:
http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=3356620&lang=en&tmp_track_link=ot_we/prodlink/en_us/3356629/loc:0&cc=us

Choose your operating system and then choose the driver you want to download for this machine.

Hope this helps!

Your Compaq did not detect the hard disk, that is why it is asking for a bootable device such as a boot floppy disk.
Check the BIOS configuration to see if the hard disk is detected, if not then re-seat the hard drive and boot up the Compaq again.
If it still does not boot up, then the hard disk is probably faulty.
To get the Compaq operating again, replace the faulty, install Windows operating system on the new hard drive, plus the Compaq's device drivers and your programs.

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