Blue Screen of Death
Encyclopedia
To forse a BSOD Open regedit.exe,
Then search:
HKLM\SYSTEM\CurrentControlSet\services\i8042prt\Parameters
Then make a new DWORD called "CrashOnCtrlScroll" ( without "")
And set the value to 1.
Restart your computer and then press the right Control button + 2x Scroll lock.
And then you have a BSOD
MatthewSmeets.nl For more Information
-------------------
The Blue Screen of Death (also known as BSoD, Blue Screen, or bluescreen), known officially as a Stop Error or a bug check
, is the error screen displayed by the Microsoft Windows
family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to crash
. The term is named after the color of the screen generated by the error. In Unix-based operating systems, a similar term is kernel panic
.
Stop errors are hardware or driver related, causing the computer to stop responding in order to prevent damage to the hardware or data. In the later versions of Windows (Windows NT
and later) the screen presents information for diagnostic purposes that was collected as the operating system performed a bug check.
operating system at Lattice Inc, the makers of early Windows and OS/2 compiler
s. Developers encountered the error screen when bugs in the operating system's software (typically null pointers) slipped through the net during beta testing. In feedback to IBM
, a company known informally as 'Big Blue', the developers humorously described the Stop screen as the 'Blue Screen of Death' in consequence of its color, of the association of that color with IBM, and of the finality of the error (which caused the computer to hang without any possibility of recovery, requiring a manual restart).
" and save all data in memory in raw form to a disk file (known as a "dump file") for later retrieval, to assist in the analysis by an expert technician of the causes of the error.
Blue screens are typically caused by software errors in device drivers: in NT-based
Windows systems by poorly-written device driver
s, and in the Windows 9x
family of operating systems by incompatible DLL
driver files or bugs in the software kernel of the operating system. They can also be caused by physical hardware faults, such as faulty RAM memory or power supplies, overheating of components, or hardware which is run beyond its specification limits ("overclocking").
These errors have been present in all Windows-based operating systems since Windows 3.1
. OS/2
suffered from the Black Screen of Death
(also BSOD), and early builds of Windows Vista
displayed a Red Screen of Death
due to a boot loader error.
, and subsequently Windows 2.0
, and consisted of seemingly random data ("mess") composed of code page 437
symbols, presented against a blue background. When Windows 1.0 encountered any MS-DOS
related critical system errors, it displayed a black screen of death
instead.
The first blue screen that resembled an error screen was in the Windows 3.x
series. Similar error screens appeared in Windows 95
, Windows 98
and Windows ME
. These presented an error message against an all-blue background, in 80-column 25-line text mode. The error screen was displayed when there was a critical startup error (such as accessing a hardware driver file that no longer existed), or in the case of some other serious fault such as an unhandled error occurring inside a VxD
hardware driver file. The BSOD also occurred during system use if a device driver had to present a modal dialog to the user, such as where a removable disk was removed from the drive whilst a file was being read or written.
During a demonstration of a beta version of Windows 98 by Microsoft's Bill Gates
, at COMDEX
on April 20, 1998, a BSOD incident occurred in public. The computer crashed with a blue screen when his assistant (Chris Capossela, currently Microsoft's Chief Marketing Officer) connected a scanner to demonstrate Windows 98's support for Plug and Play devices. This brought applause from the crowd, and Gates replied after a pause: "That must be... er... that must be why we're not shipping Windows 98 yet!"
In Windows NT
-based operating systems, the Stop error occurs when the kernel, or a driver running in kernel mode, encounters any error from which it cannot recover. This is usually caused by an illegal operation
being performed, where the only safe action the operating system can take is to restart the computer. As a result data may be lost, since the user is not given an opportunity to save any unsaved data to disk.
The text on the error screen contains an error code along, four other codes whose meanings depend on the error code itself, and an error name. Depending on the error code, it may display the memory address at which the problem occurred, together with identifying details of the driver file loaded at that address. Under Windows NT and 2000, the second and third sections of the screen may list all the currently-loaded drivers and display all memory data (a "stack dump"), respectively. The driver information will list the disk address of the driver file, the file's creation date (as a Unix timestamp), and the name of the file.
By default, Windows NT based systems create a memory dump file when a Stop error occurs. Depending on the operating system version, this can range from a 64 kB mini-dump to a complete dump of memory that saves the entire active contents of the RAM
. The resulting file can thus be analyzed later. A kernel debugger
software program may be used in order to obtain a stack
trace (identifying certain memory information) to find the true cause of the error, as the on-screen information is limited and may conceal the true cause.
A Stop error can also be caused by a critical boot loader error, where the operating system is unable to start from the bootable drive due to the presence of an incorrect disk driver, a damaged file system
, or a similar problem. In such cases no memory dump is saved.
, released in September 2011. Rather than displaying detailed technical information about the error, it simply displays a short explanation that system needs to restart, the technical name of the error and a sad emoticon
. Also it contains a lighter shade of blue
in the background.
For example:
The first code represents a specific error, while the others are additional data whose meaning depends on the error code.
Then search:
HKLM\SYSTEM\CurrentControlSet\services\i8042prt\Parameters
Then make a new DWORD called "CrashOnCtrlScroll" ( without "")
And set the value to 1.
Restart your computer and then press the right Control button + 2x Scroll lock.
And then you have a BSOD
MatthewSmeets.nl For more Information
-------------------
The Blue Screen of Death (also known as BSoD, Blue Screen, or bluescreen), known officially as a Stop Error or a bug check
Bug check
A fatal system error, also known as a system crash, stop error, kernel error, or bug check, is when an operating system halts the moment it reaches a condition where it cannot operate safely....
, is the error screen displayed by the Microsoft Windows
Microsoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...
family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to crash
Crash (computing)
A crash in computing is a condition where a computer or a program, either an application or part of the operating system, ceases to function properly, often exiting after encountering errors. Often the offending program may appear to freeze or hang until a crash reporting service documents...
. The term is named after the color of the screen generated by the error. In Unix-based operating systems, a similar term is kernel panic
Kernel panic
A kernel panic is an action taken by an operating system upon detecting an internal fatal error from which it cannot safely recover. The term is largely specific to Unix and Unix-like systems; for Microsoft Windows operating systems the equivalent term is "Bug check" .The kernel routines that...
.
Stop errors are hardware or driver related, causing the computer to stop responding in order to prevent damage to the hardware or data. In the later versions of Windows (Windows NT
Windows NT
Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was intended to complement...
and later) the screen presents information for diagnostic purposes that was collected as the operating system performed a bug check.
History
The term Blue Screen of Death originated during development of the IBM OS/2OS/2
OS/2 is a computer operating system, initially created by Microsoft and IBM, then later developed by IBM exclusively. The name stands for "Operating System/2," because it was introduced as part of the same generation change release as IBM's "Personal System/2 " line of second-generation personal...
operating system at Lattice Inc, the makers of early Windows and OS/2 compiler
Compiler
A compiler is a computer program that transforms source code written in a programming language into another computer language...
s. Developers encountered the error screen when bugs in the operating system's software (typically null pointers) slipped through the net during beta testing. In feedback to IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...
, a company known informally as 'Big Blue', the developers humorously described the Stop screen as the 'Blue Screen of Death' in consequence of its color, of the association of that color with IBM, and of the finality of the error (which caused the computer to hang without any possibility of recovery, requiring a manual restart).
Details
If configured to do so, the computer will perform a "core dumpCore dump
In computing, a core dump consists of the recorded state of the working memory of a computer program at a specific time, generally when the program has terminated abnormally...
" and save all data in memory in raw form to a disk file (known as a "dump file") for later retrieval, to assist in the analysis by an expert technician of the causes of the error.
Blue screens are typically caused by software errors in device drivers: in NT-based
Windows NT
Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was intended to complement...
Windows systems by poorly-written device driver
Device driver
In computing, a device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device....
s, and in the Windows 9x
Windows 9x
Windows 9x is a generic term referring to a series of Microsoft Windows computer operating systems produced since 1995, which were based on the original and later modified Windows 95 kernel...
family of operating systems by incompatible DLL
Dynamic-link library
Dynamic-link library , or DLL, is Microsoft's implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems...
driver files or bugs in the software kernel of the operating system. They can also be caused by physical hardware faults, such as faulty RAM memory or power supplies, overheating of components, or hardware which is run beyond its specification limits ("overclocking").
These errors have been present in all Windows-based operating systems since Windows 3.1
History of Microsoft Windows
In 1983, Microsoft announced the development of Windows, a graphical user interface for its own operating system , which had shipped for IBM PC and compatible computers since 1981...
. OS/2
OS/2
OS/2 is a computer operating system, initially created by Microsoft and IBM, then later developed by IBM exclusively. The name stands for "Operating System/2," because it was introduced as part of the same generation change release as IBM's "Personal System/2 " line of second-generation personal...
suffered from the Black Screen of Death
Black Screen of Death
The Black Screen of Death is generally a colloquialism used for the black error screen displayed by some operating systems after encountering a critical system error which can cause the system to shut down to prevent damage.-Windows 3.x:...
(also BSOD), and early builds of Windows Vista
Windows Vista
Windows Vista is an operating system released in several variations developed by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs, and media center PCs...
displayed a Red Screen of Death
Red Screen of Death
The Red Screen of Death is a nickname for the error message which existed in some beta versions of Microsoft's operating system, Windows Vista and some video game consoles and handhelds. It was dropped in Beta 1 of Windows Vista for all errors except boot loader errors...
due to a boot loader error.
Windows 1.0 and 2.0
The earliest blue screen of death was encountered upon booting into Windows 1.0Windows 1.0
Windows 1.0 is a 16-bit graphical operating environment, developed by Microsoft and released on 20 November 1985. It was Microsoft's first attempt to implement a multi-tasking graphical user interface-based operating environment on the PC platform. Windows 1.0 was the first version of Windows...
, and subsequently Windows 2.0
Windows 2.0
Windows 2.0 is a 16-bit Microsoft Windows GUI-based operating environment that was released on December 9, 1987 and is the successor to Windows 1.0. With Windows 2.1x in 1988, Windows 2.0 was supplemented by Windows/286 and Windows/386...
, and consisted of seemingly random data ("mess") composed of code page 437
Code page 437
IBM PC or MS-DOS code page 437 is the character set of the original IBM PC. It is also known as CP 437, OEM 437, PC-8, MS-DOS Latin US or sometimes misleadingly referred to as the OEM font, High ASCII or Extended ASCII....
symbols, presented against a blue background. When Windows 1.0 encountered any MS-DOS
MS-DOS
MS-DOS is an operating system for x86-based personal computers. It was the most commonly used member of the DOS family of operating systems, and was the main operating system for IBM PC compatible personal computers during the 1980s to the mid 1990s, until it was gradually superseded by operating...
related critical system errors, it displayed a black screen of death
Black Screen of Death
The Black Screen of Death is generally a colloquialism used for the black error screen displayed by some operating systems after encountering a critical system error which can cause the system to shut down to prevent damage.-Windows 3.x:...
instead.
Windows 3.x, 95, 98, and ME
Windows 3.x
Windows 3.x can refer to either an individual or all of the following versions of Microsoft Windows:*Windows 3.0*Windows 3.1x*Windows 3.2...
series. Similar error screens appeared in Windows 95
Windows 95
Windows 95 is a consumer-oriented graphical user interface-based operating system. It was released on August 24, 1995 by Microsoft, and was a significant progression from the company's previous Windows products...
, Windows 98
Windows 98
Windows 98 is a graphical operating system by Microsoft. It is the second major release in the Windows 9x line of operating systems. It was released to manufacturing on 15 May 1998 and to retail on 25 June 1998. Windows 98 is the successor to Windows 95. Like its predecessor, it is a hybrid...
and Windows ME
Windows Me
Windows Millennium Edition, or Windows Me , is a graphical operating system released on September 14, 2000 by Microsoft, and was the last operating system released in the Windows 9x series. Support for Windows Me ended on July 11, 2006....
. These presented an error message against an all-blue background, in 80-column 25-line text mode. The error screen was displayed when there was a critical startup error (such as accessing a hardware driver file that no longer existed), or in the case of some other serious fault such as an unhandled error occurring inside a VxD
VxD
VxD is the device driver model used in Microsoft Windows/386, the 386 enhanced mode of Windows 3.x, Windows 9x, and to some extend also by the Novell DOS 7, OpenDOS 7.01, and DR-DOS 7.02 multitasker...
hardware driver file. The BSOD also occurred during system use if a device driver had to present a modal dialog to the user, such as where a removable disk was removed from the drive whilst a file was being read or written.
During a demonstration of a beta version of Windows 98 by Microsoft's Bill Gates
Bill Gates
William Henry "Bill" Gates III is an American business magnate, investor, philanthropist, and author. Gates is the former CEO and current chairman of Microsoft, the software company he founded with Paul Allen...
, at COMDEX
COMDEX
COMDEX was a computer expo held in Las Vegas, Nevada, each November from 1979 to 2003. It was one of the largest computer trade shows in the world, usually second only to the German CeBIT, and by many accounts one of the largest trade shows in any industry sector...
on April 20, 1998, a BSOD incident occurred in public. The computer crashed with a blue screen when his assistant (Chris Capossela, currently Microsoft's Chief Marketing Officer) connected a scanner to demonstrate Windows 98's support for Plug and Play devices. This brought applause from the crowd, and Gates replied after a pause: "That must be... er... that must be why we're not shipping Windows 98 yet!"
Windows NT
Windows NT
Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was intended to complement...
-based operating systems, the Stop error occurs when the kernel, or a driver running in kernel mode, encounters any error from which it cannot recover. This is usually caused by an illegal operation
General protection fault
A general protection fault in the Intel x86 and AMD x86-64 architectures, and other unrelated architectures, is a fault that can encompass several cases in which protection mechanisms within the processor architecture are violated by any of the programs that are running, either the kernel or a...
being performed, where the only safe action the operating system can take is to restart the computer. As a result data may be lost, since the user is not given an opportunity to save any unsaved data to disk.
The text on the error screen contains an error code along, four other codes whose meanings depend on the error code itself, and an error name. Depending on the error code, it may display the memory address at which the problem occurred, together with identifying details of the driver file loaded at that address. Under Windows NT and 2000, the second and third sections of the screen may list all the currently-loaded drivers and display all memory data (a "stack dump"), respectively. The driver information will list the disk address of the driver file, the file's creation date (as a Unix timestamp), and the name of the file.
By default, Windows NT based systems create a memory dump file when a Stop error occurs. Depending on the operating system version, this can range from a 64 kB mini-dump to a complete dump of memory that saves the entire active contents of the RAM
Ram
-Animals:*Ram, an uncastrated male sheep*Ram cichlid, a species of freshwater fish endemic to Colombia and Venezuela-Military:*Battering ram*Ramming, a military tactic in which one vehicle runs into another...
. The resulting file can thus be analyzed later. A kernel debugger
Debugger
A debugger or debugging tool is a computer program that is used to test and debug other programs . The code to be examined might alternatively be running on an instruction set simulator , a technique that allows great power in its ability to halt when specific conditions are encountered but which...
software program may be used in order to obtain a stack
Call stack
In computer science, a call stack is a stack data structure that stores information about the active subroutines of a computer program. This kind of stack is also known as an execution stack, control stack, run-time stack, or machine stack, and is often shortened to just "the stack"...
trace (identifying certain memory information) to find the true cause of the error, as the on-screen information is limited and may conceal the true cause.
A Stop error can also be caused by a critical boot loader error, where the operating system is unable to start from the bootable drive due to the presence of an incorrect disk driver, a damaged file system
File system
A file system is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data, as well as manage the available space on the device which contain it. A file system organizes data in an efficient manner and is tuned to the...
, or a similar problem. In such cases no memory dump is saved.
Windows 8
A new version of the error screen has been seen in the developer preview of Windows 8Windows 8
Windows 8 is the codename for the next version of the Microsoft Windows computer operating system following Windows 7. It has many changes from previous versions. In particular it adds support for ARM microprocessors in addition to the previously supported x86 microprocessors from Intel and AMD...
, released in September 2011. Rather than displaying detailed technical information about the error, it simply displays a short explanation that system needs to restart, the technical name of the error and a sad emoticon
Emoticon
An emoticon is a facial expression pictorially represented by punctuation and letters, usually to express a writer’s mood. Emoticons are often used to alert a responder to the tenor or temper of a statement, and can change and improve interpretation of plain text. The word is a portmanteau word...
. Also it contains a lighter shade of blue
Blue
Blue is a colour, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440–490 nm. It is considered one of the additive primary colours. On the HSV Colour Wheel, the complement of blue is yellow; that is, a colour corresponding to an equal...
in the background.
Meanings
The NT-style BSOD displays error codes that explain what just happened inside the kernel. The STOP error displays five error codes in the following general form:STOP: 0x#### (0x####, 0x####, 0x####, 0x####) Error Name
For example:
STOP: 0x00000019 (0x00000000, 0xC00E0FF0, 0xFFFFEFD4, 0xC0000000) BAD_POOL_HEADER
The first code represents a specific error, while the others are additional data whose meaning depends on the error code.
See also
- Kernel panicKernel panicA kernel panic is an action taken by an operating system upon detecting an internal fatal error from which it cannot safely recover. The term is largely specific to Unix and Unix-like systems; for Microsoft Windows operating systems the equivalent term is "Bug check" .The kernel routines that...
- the equivalent on Unix-likeUnix-likeA Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification....
systems - Fatal system errorFatal System ErrorFatal System Error is a nonfiction work written by Joseph Menn that exposes a story of espionage that penetrates the network of international mobsters and hackers who use the Internet to extort money from businesses, steal from tens of millions of consumers, and attack government networks.Its main...
- Screen of death