HDD Worked, OK No Startup THEN NEEDS INITIATE Appears.

buried in endless spam are you.
does it fail on 2nd PC????????????????????????????
but yes, I am the MVP of external HDD< I build my own.
Have over 5 here for Backups .
lots of causes, for sure bad drive, or missing drivers..
bad HW hardware or BAD software SW.
Missing 12vdc 2amp power pack>, lost or using wrong one.
when pack above does the HDD spin? usb connected to PC.
NO PC stated, NO OS stated, windows/chrome/Linux/android?
its at lease 10 years old , see posts back that far.
not good old HDD,this old.
sold during W7 era. 2009.
The drive has 3.5" HDD that needs lots of power (Amps)
to start up that big motor inside, and is first thing to learn .
2amps it needs, ok? so if pack is missing it will never startup
on any USB port, not rated for 20x standard USB load factors.
some laptops only do 0.1amps (100mA) and are useless to startup any hdd motor of any kind.
see why here.
and see a better extremal solution cheap.! $10
http://www.pcdied.com/external-hdd.html

Which windows OS are you using? windows xp, 7 or 8?
Anyway the problem might be corrupted installation CD. If you install windows on other computer using this CD, so if CD is OK, then
start your laptop and press F8 repeatedly until Windows Advanced Boot Options appears. Then choose automatic restart on system failure. This option will allow you to see Blue Screen Of Death and to understand what causes a problem.

If you let the laptop boot up, does it start ok. If it won't startup, then the HDD is defective and needs to be replaced.

Is the win7 legitimate install?

best bet would be to remove hard drive, attach to pc as secondary hdd and save all important docs,

then re-insert back into laptop and press F8 to initiate toshiab opearting system recovery,

From your description the hard drive is bad and needs to be replaced.

itll be the hard drive.

When you first turn the laptop on is there a HP splash screen? Can you enter the BIOS (normally by tapping F2 or Del key). If so then it would seem the BIOS updated OK. If when you turn it on there is nothing the BIOS flash probably went wrong and the machine will need a new BIOS flash chip installed.
If you can access BIOS then it may be a simple problem that the new BIOS reverted to default values. The most common issue would be the boot mode of the HDD. Look through the BIOS menus and there should be an option for boot which will say AHCI/IDE/Compatibility. Try changing it to another option, save and exit BIOS and see if that helps. Try this for each option.
Alternatively tap F8 continuously when you turn the laptop on and see if the advanced boot menu appears, if it does try selecting Safe mode with networking.
Finally to test if the HDD is actually working, try downloading Hiren's BootCD and boot to it. Then run some HDD diagnostics to see if the HDD is operating correctly.
Hope this helps,
www.PuterCare.com

You have an incomplete Hewlett-Packard All-in-One installation.

Reinstall the printer driver, or remove hp install postcheck from the startup (you'll need to use the MSCONFIG utility: Start -> Run command -> MSCONFIG -> OK -> Startup -> (search for hp install or postcheck) -> remove the check -> apply -> close -> reboot to see whether it worked )

1. Start the computer, and then press the F8 key when Windows begins to start. The Windows Advanced Options menu appears.
2. Use the ARROW keys to select Last Known Good Configuration (your most recent settings that worked), and then click OK.
3. If a start menu appears, use the ARROW keys to select Microsoft Windows XP, and then click OK
   
   I mean when you normally start your pc do you msn and programs that are set to start on startup

Do you mean ' cannot initiate filtergraph ' ?? Manufacturer would be helpful.