Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: BSOD x000000051 Starting up Windows

20 Jul 2014   #1

Windows 7 Home 64
BSOD x000000051 Starting up Windows

Greetings and thank you if you are reading this.

Recently, my computer had been slowing down and had started to crawl, but I had no issue with waiting considering the age of 4-5 years now for this computer.

However, over the last 2 days I've started to get BSOD after login into Windows 7 Home, and I've been reading about the issue of 51 which is a hardware problem.

Due to that most of the people here were found within google I decided to join in here and ask for help.

I'm pretty new to Windows 7 when it comes to computer hardware and software, so my competence isn't that modern anymore and I ask here for help.

I've gotten SF Diag tools to try and find the issue.

I've tried to read the dump files with Bluescreenviewer, yet sadly I am unable to read it correctly. =/

I've tried to update my graphic drivers Nvidia GeForge 240 GT to the latest one over the course of trying to fix it as I have a hunch it may be the cause of it but for now it's uncertain.

I've tried to use TDSSKiller(Spelled?) and the other tools just to be safe. No error were found.
I also disabled all startups optional programs to try and limit it down, even disabling some devices like sound card and such through devmgmt.msc for startup debugging but no avail there either.

I'm at my rope's end here.

Thank you if you are able to help me.

My System SpecsSystem Spec
20 Jul 2014   #2

Windows 7 Ultimate 64-bit

According to, STOP 0x00000051: REGISTRY_ERROR
Usual causes: Hardware failure, File system corruption, Security issues

*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Something has gone badly wrong with the registry.  If a kernel debugger
is available, get a stack trace. It can also indicate that the registry got
an I/O error while trying to read one of its files, so it can be caused by
hardware problems or filesystem corruption.
It may occur due to a failure in a refresh operation, which is used only
in by the security system, and then only when resource limits are encountered.
Arg1: 0000000000000001, (reserved)
Arg2: fffff8a000024010, (reserved)
Arg3: 000000000113b000, depends on where Windows bugchecked, may be pointer to hive
Arg4: 0000000000000374, depends on where Windows bugchecked, may be return code of
	HvCheckHive if the hive is corrupt.
Okay so lets rule out some of the easy causes first:

Please run a SFC /SCANNOW Command: SFC /SCANNOW Command - System File Checker

Also your BIOS is old this could be a cause:
BIOS Date: 01/07/10
Also your antivirus, is BitDefender i have came across many BSOD's with the cause being BD.

avc3         avc3                   File System   2013-04-11 10:31:58   
avckf        avckf                  File System   2013-04-11 10:35:04
My System SpecsSystem Spec
20 Jul 2014   #3

Windows 7 Home 64

Did a sfc /SCANNOW in cmd. Did not find any integrity violatons.

Uninstalled BD, will restart after writing this. Using Windows' own firewall.

Not sure on which BIOS version I need, or where to find the specific version I need. Or even the model name or anything.

Attempted to restart into windows, but I got an error before that, something about page and unpaged, didn't have time to read it before it shut down.

I tried once again after doing a memtest for 10 passes with no issues found, and tried to restart it again. And it was back to Regestry Error.

Putting up a new DF Zip.

Edit 2: Found a red line in bluescreenview <-- Not sure if this is important or not.

Edit 3: Safe Mode works.
My System SpecsSystem Spec

21 Jul 2014   #4

Windows 7 Ultimate 64-bit

Okay lets try some other things.

Do you have your CD, or are you able to do a Start up repair?
My System SpecsSystem Spec
21 Jul 2014   #5

Windows 7 Home 64

I seem to have done some damage this time. =/

After getting ahold of the Motherboard BIOS update version, I was about to restart into safe mode and download the latest BIOS available. I had to restart the computer several times to see which Motherboard Generation it was, and once I had gotten enough information to pinpoint which Motherboard Version BIOS I needed, the Safe Mode Crash, and it seems to be related to error 24. So I had to find out what it was.

After I found out it is related to Harddrive Failure or readability, I feared the worst of my data. I did a complete chkdisc and it was replacing security ID to default on every single file, up to above 150k files. Also it pointed out some of the segments was unreadable.

So now, I'm trying to get Safe Mode working again.

As for the CD Drive, I currently had it disabled in device manager to pinpoint down what caused this. However it should be useable as a boot, but I do not have the original CD around anymore for Windows 7 due to that it's been well over 4 years I had this. I've asked a friend who is more of a wiz than me when it comes to computer and he recommended a Full Reinstall with Windows 7 ultimate.

For Startup repair, I am uncertain how to do that. I'll google it and try to attempt it before I am desperate enough to reinstall windows.

So later today, I'll be attempting to reinstall windows 7 Ultimate edition and see if that fixes it.

I may come back soon, depending on the results.

Thank you Harrie for help so far.

Be back in about a day and see if this may help.

After a reinstallation, I was able to get my files back and so far the computer is finally workable. It's time to do a full save/Backup files and format every other piece of the harddrive.

Shame it was not fixable without a reinstall but thank you for the help atleast.

Cheers Harrie.

My System SpecsSystem Spec

 BSOD x000000051 Starting up Windows

Thread Tools

Similar help and support threads
Thread Forum
Many BSOD during or after starting windows
System : System Model p6580t System Type x64-based PC Processor Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz, 2668 Mhz, 4 Core(s), 4 Logical Processor( NVIDIA GeForce GTX 650 Installed Physical Memory (RAM) 12.0 GB ran Chkdsk: no errors sfc scannow ...
BSOD Help and Support
BSOD after Starting Windows
Hey guys i suddenly experience a BSOD after Starting Windows screen. This happens after i restart my PC then suddenly this happens. Safe mode not working, Last known good configuration doesnt work also and Startup repair doesnt work also. This loops on and on and on My Specs : Windows 7...
BSOD Help and Support
BSOD Before starting Windows
Hello everyone, I am just new here and I was hoping that someone here might give me an assistance regarding my problem in this case of BSOD, It occurred to me 3 times this day and this day only. I wish to know what this BSOD means. I wanted to analyze it myself but I am noob when it comes to...
BSOD Help and Support
BSOD on starting Windows
I have a Toshiba L655 -183 with Win 7 Home Premium 64bit laptop with Intel i5 460m , 4GB Ram, 500GB HDD & A Ti Radeon HD 5650 graphics card . I am not so conversant with computers but ill try my best to give as much information as possible. Anyway up until a few weeks ago i could run the laptop...
BSOD Help and Support
BSOD Starting Windows Virtual PC Machines (any machine, always bsod)
Hello All, I've been getting consistent BSODs while trying to start Windows Virtual PC (not Microsoft Virtual PC 2007) machines on my computer. I've tried various driver updates and a bios update and several system restores along the way, but to no avail. In the attached dump files, the last...
BSOD Help and Support
BSOD when starting Windows 7!
Hello everybody. I'm new to this site and I have a problem that I wish to ask whoever could help whom I would like to thank in advance. My system specs: Windows 7 Ultimate 64-bit Service Pack 1 (downloaded as ISO and burnt on DVD) Pentium E5400 (The processor is about 1 year old) Asus...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 19:57.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App