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Formatted HD, trying to reinstall Windows 7 - NTLDR is missing


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#1 J.Ed

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Posted 26 April 2011 - 02:47 PM

Hi,
I put together my barebones system, installed Windows 7, and everything was great.

Then I installed Sony Vegas 10. The next time I tried to boot up, I got several BSODs and couldn't boot in any mode. Everything was not so great.

After trying a few things, I formatted the HD in the hopes of starting fresh.

Upon first bootup, I got a message saying that "NTLDR is missing."

I've tried using the boot CD & USB method described at http://www.bleepingcomputer.com/forums/topic389643.html/page__view__findpost__p__2198509 , but it hangs up in a DOS-looking screen on a line that says "[0.762735] [<c01034a7>] kernel_thread_helper+0x7/0x10"

So that's where I am right now.

Any ideas?

Thanks,
Ed

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#2 lkegley9

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Posted 26 April 2011 - 03:15 PM

Did you format the drive using your Windows 7 disc and re-installed Windows 7 on the new formatted partition? Because NTLDR deals with Windows XP, not 7. So that leads me to believe there is some remnants of Windows XP on your hard drive somewhere and it can't boot to it because of it.

#3 J.Ed

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Posted 26 April 2011 - 03:17 PM

I had to format it with my work laptop (XP) and a SATA USB adapter. Is there another way to get a clean reformat?

#4 lkegley9

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Posted 26 April 2011 - 03:20 PM

Do you have a Windows 7 disc and a CD/DVD drive?

#5 J.Ed

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Posted 26 April 2011 - 03:21 PM

I do, but haven't been able to boot from the DVD.

#6 lkegley9

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Posted 26 April 2011 - 03:22 PM

What do you do to try and boot to the DVD?

#7 J.Ed

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Posted 26 April 2011 - 03:23 PM

hit the spacebar when it says "press any key to boot from the DVD"
it starts loading, then BSODS with IRQL_NOT_LESS_OR_EQUAL

I tried to boot it in safe mode from the DVD, but it gave me a BSOD with no code/reason listed.

#8 lkegley9

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Posted 26 April 2011 - 03:26 PM

Take all but one stick of RAM out of your system and attempt it then. If you only have two sticks in it currently, just leave one in. If the BSOD still persists, try using just the other stick of RAM in that same RAM slot. If the problem still persists, post back.

#9 J.Ed

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Posted 26 April 2011 - 03:41 PM

The boot manager says to insert the installation disc & restart.

Just because it was there, I ran the memory diagnostic, which said that there is a hardware problem.

I restarted the computer, and it returned with the same boot manager screen.

I'm switching out the RAM and trying again. . .

Edited by J.Ed, 26 April 2011 - 03:42 PM.


#10 J.Ed

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Posted 26 April 2011 - 03:48 PM

It works now, and I'm reinstalling Windows 7; is the memory stick bad?

#11 lkegley9

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Posted 26 April 2011 - 03:54 PM

Very possibly. What I would do is RMA your memory. But since its a barebones kit, I imagine you will have to RMA both sticks as a 'kit'. Its also possible that the voltages on the board aren't supplying enough to your memory.

Real quick, could you give me the make and model of your motherboard? Also the rated frequency of your RAM. I want to look it up to see what speeds of memory your motherboard supports and see if its possible that its not compatible. In that case, using one stick might result in a working system.

#12 J.Ed

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Posted 26 April 2011 - 03:57 PM

The kit only came with one stick; I added the other.

The mobo is an ECS/Elitegroup IC780M-A & the memory is Patriot PC2-6400

#13 lkegley9

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Posted 26 April 2011 - 04:34 PM

Ok well in that case, then you will only have to RMA one stick.

And yes, the motherboard will most likely support that memory. RMA that one stick and hopefully your problems are over. :D

#14 J.Ed

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Posted 27 April 2011 - 08:02 AM

I was replaying the whole affair for an IT friend, and he suggested that the mobo isn't getting enough power. If I upgraded the power supply (currently a 450W), would that clear up the issues?

#15 lkegley9

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Posted 27 April 2011 - 08:53 AM

Possibly. Whats the make and model of your PSU?




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