My Hp Dv3550 Wont Boot and Stops On The HP Logo

My Hp Dv3550 Wont Boot and Stops On The HP Logo,
It happened to me 3 or 4 time before and then it worked normal after 3 restart or 4
but now its not working !!
I have tried exchanging the rams, and removing and installing the hdd,
btw i was installing windows 7 and when it restarted the problem happened
so the operating system is not completely installed
and when i try pressing f2 or f10 to enter the Bios options it freezes !!!!
what could the problem be
i still have 7 months warranty !!!
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JohnBusiness Consultant (Owner)Commented:
It appears to be a hardware problem from this description. Since it remains under warranty, the best course of action would be to get HP to repair it. ... Thinkpads_User
madridista1902Author Commented:
When i removed the hdd and started it without it
it worked normally, i can access the bios option, no freezing
does this mean that i have lost all the data ?
if i try to access the data on the hdd through a usb connection does it work ?
JohnBusiness Consultant (Owner)Commented:
>>> does this mean that i have lost all the data ?

It depends on the state of the Windows 7 install. If you put the hard drive in an enclosure and attach it to another computer via USB, yes, you should be able to get the data off it. Again, it depends on the state of the install and also perhaps, the state of the hard drive (it could have an error). You can try and see what you can see on the hard drive.  ... Thinkpads_User

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This will give you step by step instructions to boot to a windows xp cd and run the recovery console in order to run a chkdsk /r to repair your disk.

If you connect your hard drive to a usb connection and you can connect it to another working computer, you can see if it shows up in My Computer on the other pc.  Right click the drive, and one of the tabs (diagnostic) will have an option to run a graphical version of checkdisk.  Make sure to check the check box to find and repair issues.
you can boot from a live cd, like Knoppix and copy your data to an external, or internal disk
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