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black screen on startup [Closed]


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#1
faith2248

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i turn on my laptop and all that shows up is a black screen with a blinking underscore on the top left....it stops blinking after a few seconds and i am left with a black screen?


it does not make any kind of noise...and i dont know if it is malware related

i have windows 7 64 bit toshiba laptop 2-3 yrs old

what can i do? will a windows 7 boot disk to reinstall windows 7 help? will a windows 7 repair disk help?

Edited by faith2248, 05 September 2012 - 04:54 PM.

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#2
Amlak

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Hi, faith2248. Welcome to GTG. It stops at the screen right before the Windows loading screen, am I right?

I'm not sure if this is a hardware issue (or a software one), so I can't really tell if any Windows disc would help. But we'll see anyway. What Windows disc(s) do you have? Is there one for you version of Windows?
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#3
faith2248

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well i dont have any discs...if it was what i needed i was going to somehow try and get it

right when i turn the laptop on after the toshiba screen where i can press f2 and f12 pops up i get that black screen.
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#4
Amlak

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Ok, first, let's make a disc then. Go here to download Windows 7 Recovery Environment ISO X64 version (64 bit).

Once downloaded, it's time to burn it to a disc. So follow the tutorial here and when you finally have a disc ready, do the following:

Download Farbar Recovery Scan Tool x64 and save it to a flash drive.

Plug the flashdrive into the infected PC.

  • Insert the Windows disc that you just burned.
  • Restart your computer.
  • If prompted, press any key to start Windows from the disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
  • Click Repair your computer.
  • Select English as the keyboard language settings, and then click Next.
  • Select the operating system you want to repair, and then click Next.
  • Select your user account and click Next.

On the System Recovery Options menu you will get the following options:
Startup Repair
System Restore
Windows Complete PC Restore
Windows Memory Diagnostic Tool
Command Prompt
[*]Select Command Prompt
[*]In the command window type in notepad and press Enter.
[*]The notepad opens. Under File menu select Open.
[*]Select "Computer" and find your flash drive letter and close the notepad.
[*]In the command window type e:\frst64 and press Enter
Note: Replace letter e with the drive letter of your flash drive.
[*]The tool will start to run.
[*]When the tool opens click Yes to disclaimer.
[*]Press Scan button.
[*]It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.[/list]
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#5
faith2248

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i dont exactly have any blank discs on me right now but, i think this might be a hard drive problem? would buying and replacing my hard drive fix this? or would there be other solutions depending on what i find out from that scan u posted above?
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#6
Amlak

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Do you have a flash drive by any chance?
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#7
faith2248

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yes i have a couple...might be able to get some CDs tommarow
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#8
Amlak

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Well, we'll use one of your flash drives to do the job for now. Make sure the flash drive you intend to use for this does not have important data in it. If there is any, please transfer them to another storage medium as you may have to format the flash drive. Now please do the following:

Download the following three programmes to your desktop :

1. WiNToBootic
2. Windows 7 RC 64 bit
3. Farbar Recovery Scan Tool 64 bit

Extract wintoboot to your desktop
Insert a USB drive of at least 4GB
Run Wintoboot

Posted Image

Drag and drop the Windows 7 ISO to the programme in the space indicated
Tick the Format box and accept the warnings
Press Do It

You will see it progressing

Posted Image

It will let you know when it is done
Then copy FRST64 to the same USB

Posted Image

Insert the USB into the sick computer and start the computer. First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions Here

When you reboot you will see this although yours will say windows 7. Click Repair my computer

Posted Image

Select your operating system

Posted Image

Select Command Prompt

Posted Image

  • In the command window type in notepad and press Enter.
  • The notepad opens. Under File menu select Open.
  • Select "Computer" and find your flash drive letter and close the notepad.
  • In the command window type e:\frst64 and press Enter
    Note: Replace letter e with the drive letter of your flash drive.
  • The tool will start to run.
  • When the tool opens click Yes to disclaimer.
  • Press Scan button.
  • It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.

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#9
Amlak

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The missing image above (where it says Posted image) wasn't posted correctly for some reason, so here it is for reference:

Posted Image
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#10
faith2248

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well it doesnt work....i change the bios to start off usb and it doesnt work?
also when i change the boot to my usb....and i save it...the next time i do f2 and go to boot...it wont be set to the boot on usb but on the regular thing.

and i kind of also left this thing out....

after the black screen a few seconds later id get a message....
---------------------------------------------------------------------
windows boot manager

windows has encountered a problem communicating with a device connected on your computer.

this error can be cause by unplugging a removable storage devicesuch as an external usb drive while the device is still in use, or by faulty hardware such as a hard drive or CD rom drive that is failing. make sure any removable is properly connected and then restart your computer.

if you continue to recive this error message, contact the hardware manufacturer.

file: \boot\BCD
status: 0xc00000e9
info: an unexpected I/O error has occured
-----------------------------------------------------------------------------

i started getting this after trying to use repair this i made awhile ago

so...

Edited by faith2248, 08 September 2012 - 03:16 PM.

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#11
Amlak

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If the BIOS is resetting on its own, then it's very likely to be a hardware issue.

I'll get back to you later to let you know what to do next.
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#12
Amlak

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Ok, post a new thread here.

The techs there should help you with what to do next. Good luck.
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#13
faith2248

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actually i dont think that the BIOS is resseting by itself

when i use the usb it wud load the files then go to strting windows then id get stuck on a black sren with my cursor.... without the usb i wud get stuck at a black screen with a blinking underscore on top and eventually the following error message:

---------------------------------------------------------------------
windows boot manager

windows has encountered a problem communicating with a device connected on your computer.

this error can be cause by unplugging a removable storage devicesuch as an external usb drive while the device is still in use, or by faulty hardware such as a hard drive or CD rom drive that is failing. make sure any removable is properly connected and then restart your computer.

if you continue to recive this error message, contact the hardware manufacturer.

file: \boot\BCD
status: 0xc00000e9
info: an unexpected I/O error has occured
-----------------------------------------------------------------------------

Edited by faith2248, 09 September 2012 - 09:26 AM.

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#14
faith2248

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above

Edited by faith2248, 09 September 2012 - 09:14 AM.

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#15
Amlak

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Either way, it still looks like a hardware issue. If the techs over at the hardware section confirm that iti isn't a hardware issue, then please feel free to come back here to post so I may help you in the case it's a Windows/malware issue.
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