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Windows failing to start


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#1
TristanD47

TristanD47

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So I dug out an old laptop which has no screen in at the moment because my old one smashed and I put a windows 7 trial on. It has been working fine for the last day or two but I tried to turn it today and it comes up with a windows failed to start error so I run the startup repair, which sat for hours trying to repair the problem but eventually told me that it was unable to find any problems. So I done a windows memory diagnostic which came back fine. I can't find any way of running it in safe mode which may help because I can check my drivers. I don't have a restore point for it. It is a Toshiba satellite L300D - 11V. I can open a command prompt but unfortunately it is the one thing I have little experience with it. I have a network cable plugged in(it does have wireless but I know it won't connect in the current state).
If anyone knows how to fix this or even just a way of getting into the device manager some how it would greatly help. Thank you

EDIT: I have just managed to find safe mode(F1 then F8) but when I tried to load it, it loaded the windows files, restarted and went to the windows error recovery page again

EDIT: I just tried again but Disabled automatic restart on system failure(or something like that) and got the error...
STOP: c000021a {Fatal System Error}
The Verification of a KnownDLL failed. system process terminated unexpectedly wi
th a status of 0xc000012f (0x001f02a0 0x00000000).
The system has been shut down

(Exactly what came up)

Edited by TristanD47, 27 October 2012 - 04:46 PM.

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#2
Ztruker

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How to run chkdsk from the Recovery Console
  • Boot your Windows 7 installation DVD
  • When you see "Press any key to boot from CD or DVD", press Enter
  • At the "Install Windows" screen, click on Repair your computer at lower left
  • At the System Recovery Options screen, make note of the drive letter assigned to your boot drive (normally C:) and click Next
  • At the Chose a Recovery Tool window, click on Command Prompt. You will be sitting at X:\Sources directory
  • If you did not note the drive letter of your boot disk, you can enter bcdedit and look at the osdevice line to see what it is.
  • Type chkdsk c: /r and press Enter (use the letter from above if not C:).
Let either run to completion undisturbed.

If that doesn't fix it, see here: How to Run a Startup Repair in Windows 7
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#3
TristanD47

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I know how to run a system repair(which does disk check) which I have already tried as I stated in my original post and as I said before, it sat for hours and found nothing wrong. Also I do not get the option "Press any key to boot from CD or DVD", it was the first thing I looked for. I took the HD out and pluged it into my pc, done a complete format and plugged it back into my laptop and installed ubuntu (which I have never tried before but just wanted something free to test out the laptop). So no worries, have a problem with ubuntu though and as I am a windows geek I have no idea how to fix ubuntu so I will make a new post for it.
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#4
Ztruker

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Are you sure Repair does a chkdsk? I can't find anything that says that specifically? Do you have a link I can read over?

I'd still suggest doing the chkdsk /r as I suggested. All it takes is some time. Won't hurt and may fix something. You could also run sfc /scannow if chkdsk doesn't fix the problem.

Once you boot to a Command Prompt, you can also use the dir command to see if you can actually see the hard drive contents.

Also some good info here: Blue Screen Error: c000021a Fatal System Error
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