Bios cant find HDD, Autodetetection HDD in BIOS doesnt work. After 20-30 times rebooting HDD was find and OS starts.

Probably your bios settings, check your power and data cables are connected properly, and change them if necesary, if this dont work, boot from a live cd OS or hirens boot to check if there is a hdd with info on it... may be a hdd or win failure too.

If it doesnt start,make sure you hear the power supply turn on.if no noise at reboot,replace the powe supply

Did you go into the bios settings and check the status of the hard drive? it would seem that is where the problem lies.

change the hdd's data cable it could be helpful ,,, sometimes when the hdd have a bad sectors it becomes not accessible there a good program to repair bad sectors called ( hdd regenerator ) after you use it ... you'll be able to format your hdd ...

SHUT DOWN COMPUTER AND CLEAR CMOS BY RESETTING JUMPER ON MOTHERBOARD AND THEN RETURN JUMPER TO NORMAL POSITION OR USE RESET BUTTON. UNPLUG ALL HDD SATA CONNECTORS FROM HDD. BOOT COMPUTER TO BIOS. MAKE SURE ENABLE ALL SATA IS ENABLED, PRESS F10 AND EXIT.YOU WANT TO SHUT DOWN AGAIN. NOW REATTACH SATA HDD AND CONNECTORS AND BOOT TO BIOS AGAIN. NOW HIT F10 AND LET COMPUTER RESTART AND LOAD INTO THE OS. LOGON AND CHECK DEVICE MANAGER..SHOULD BE THERE. IF NOT CHECK MOTHER BOARD WEB SITE FOR BIOS UPDATE. IF BIOS UPDATE DOESN'T DO THE TRICK, SHUT DOWN AND DISCONNECT THE IDE DRIVE, UNLESS IT CONTAINS YOUR OS. TRY BOOTING TO BIOS AND CHANGE ORDER OF 1ST BOOT OPTIONS, HIT F10 AND EXIT AND ALLOW COMPUTER TO BOOT TO OS, THEN LOGON, GO TO DEVICE MANAGER AND REMOVE IDE AND RESTART, ONLY IF THIS HDD DOES NOT CONTAIN OS. YOU SHOULD BE FINE AFTER THIS, OR INSTALL YOUR OS ON THE SATA HDD.

You are correct your bios needs to be upgraded
Go to Toshiba's site and, download the upgrade and, follow the directions to install it then;reboot.
Do not unplug or, turn off the computer during the upgrade for any reason and, have the battery installed and, fully charged when you start the procedure.

Hi there, you need do follow steps:
1) check bios setting make sure HDD at secondery priority (CDROM first) do not put USB at top of HDD and CDROM
2) take out HDD and set it back, this step let HDD interface got a good conection. because it could be interfere some signal.
3) still boot stop, so your windows system file could be damaged,
you need try to boot a OS disk try to repair the system files.
4) still no operating system you have to restore or reinstall your windows.
notes: backup your documents from HDD before step 4), to avoid data lost.
hope help you fix it, any question feedback any time please.

In your bios you should be able to change your settings for the hdd. Make sure everything in bios matches your hdd & then save changes & reboot. Hopefully that will allow you to enter windows.

Your laptop doesn't recognised hdd.
You should go to bios to see if your hdd is there.
if you don't see your hdd in the bios, most of the time is harddrive problem (dead).
In this case, you can replace your hdd.
but if you see your hdd and you get PXE-E61 error message, your OS might be corrupted.

Try to delete the partition of your HDD and then create another one an format it to NTFS. Set the bios to boot from CD, Once the setup disk for XP loads, Try to follow the steps I provided.

For the Best OS, you need to make sure the computer is able to get the requirements for certain OS.
For WinXP atleast 256 MB RAM(recomended 512mb),For Vista 512MB(recommended 1gb)