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Windows 7: Can't Log On..Blue Screen Error..Help :(

19 Jun 2014   #1
Galal Ayman

Windows 7 Ultimate 64
 
 
Can't Log On..Blue Screen Error..Help :(

Hi everyone, first, I'm new so my apologies if this thread is in the wrong category. So I rebooted my dell laptop and got to the black screen where there were ''start windows normally'' and ''launch startup repair'', I chose start windows normally but it just rebooted and same thing happened, so I chose to launch system repair when it finished running same thing happened,it rebooted again and same, so I started it in safe mode and same thing, so I tried chosing from advanced boot options ''Last Known Good Configuration'', and the blue screen appeared which reads ''STOP : c000021a fatal system error'', then guess what happened, it rebooted and same thing happened .
So as you can see I cannot in anyway log on.
Also, I neither installed new drivers nor updated any
.

Please help!
A million thanks to any help.


Edit; the reason I first rebooted my laptop was because avira free antivirus asked for a password (which I didn't set) for disabling the program and for accessing the admistrative section..so I googled and found this:
''Start the computer in safe mode then go to
C:\ProgramData\Avira\AntiVir Desktop\CONFIG
• Click with the right mouse button on the AVWIN.INI file and open it with the Notepad
• Edit the file under the item [COMMON] as follows:
Password=
SecurityExtension=0x00000000
• Save the file
• Restart your PC
• The password protection for Avira has now been removed
''
And that's when it happened


My System SpecsSystem Spec
.
20 Jun 2014   #2
matts6887

Windows 7 ultimate 64-bit
 
 

please follow the instructions at the top of the page in the bsod forum. here is the link to that:

Blue Screen of Death (BSOD) Posting Instructions
My System SpecsSystem Spec
20 Jun 2014   #3
ZeldaYoshi

Windows 7 Home Premium 64-bit
 
 

If you have a disc drive then try booting into a bootable Windows 7 CD if you have one.If it still comes up with the blue screen of death then it has something to do with either your motherboard,or memory or hard drive.
My System SpecsSystem Spec
.

20 Jun 2014   #4
Galal Ayman

Windows 7 Ultimate 64
 
 

Quote   Quote: Originally Posted by matts6887 View Post
please follow the instructions at the top of the page in the bsod forum. here is the link to that:

Blue Screen of Death (BSOD) Posting Instructions
I can't even log on to do that..sorry!
My System SpecsSystem Spec
20 Jun 2014   #5
Galal Ayman

Windows 7 Ultimate 64
 
 

Quote   Quote: Originally Posted by Link2804 View Post
If you have a disc drive then try booting into a bootable Windows 7 CD if you have one.If it still comes up with the blue screen of death then it has something to do with either your motherboard,or memory or hard drive.
What if I don't have a disc drive?
My System SpecsSystem Spec
20 Jun 2014   #6
ZeldaYoshi

Windows 7 Home Premium 64-bit
 
 

Then you will have to try replacing any one of those things without trying to boot into a disc.Let me guess,you don't have a disc drive do you?
My System SpecsSystem Spec
20 Jun 2014   #7
ZeldaYoshi

Windows 7 Home Premium 64-bit
 
 

Try this.Go to to the the advanced boot options again and go to Repair your computer.When it comes up with everything choose Command Prompt.Then run chkdsk and see what happens.If that does not work then try the system restore and roll it back a few days.
My System SpecsSystem Spec
20 Jun 2014   #8
Galal Ayman

Windows 7 Ultimate 64
 
 

Quote   Quote: Originally Posted by Link2804 View Post
Try this.Go to to the the advanced boot options again and go to Repair your computer.When it comes up with everything choose Command Prompt.Then run chkdsk and see what happens.If that does not work then try the system restore and roll it back a few days.
Command prompt doesn't show up.
A system repair is launched and when it's done, I either shutdown or restart(doesn't work).
Where can I try the system restore?
I chose Directory Services Restore Mode from advanced boot options, but I got ''Cannot determine file systems of drive''
My System SpecsSystem Spec
20 Jun 2014   #9
ZeldaYoshi

Windows 7 Home Premium 64-bit
 
 

I said choose the repair your computer option.It will be the first thing highlighted when it brings you to the Advanced start up options after pressing F8.When it brings there then hit the enter key.
My System SpecsSystem Spec
20 Jun 2014   #10
Galal Ayman

Windows 7 Ultimate 64
 
 

Yeah I did that but nothing happens after the repair..command prompt isn't there.
My System SpecsSystem Spec
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 Can't Log On..Blue Screen Error..Help :(




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