03 September 2011

Blue Screen Of Death (BSOD)

 A Blue Screen Of Death, or officially known as the STOP Error is a system crash happening due to hardware or driver(software) errors. 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.

The Blue Screen of Death

While it may seem odd to think about purposefully causing a Blue Screen Of Death (BSOD), Microsoft includes such a provision in Windows XP (Vista also). This might come in handy for testing and troubleshooting your Startup And Recovery settings, Event logging, and for demonstration purposes.

Here's how to create a BSOD:

Launch the Registry Editor (Regedit.exe).
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters.
Go to Edit, select New | DWORD Value and name the new value CrashOnCtrlScroll.
Double-click the CrashOnCtrlScroll DWORD Value, type 1 in the Value Data textbox, and click OK.
Close the Registry Editor and restart Windows XP.
When you want to cause a BSOD, press and hold down the [Ctrl] key on the right side of your keyboard, and then tap the [ScrollLock] key twice. Now you should see the BSOD.

If your system reboots instead of displaying the BSOD, you'll have to disable the Automatically
Restart setting in the System Properties dialog box. To do so, follow these steps:

Press [Windows]-Break.
Select the Advanced tab.
Click the Settings button in the Startup And Recovery panel.
Clear the Automatically Restart check box in the System Failure panel.
Click OK twice.

Here's how you remove the BSOD configuration:

Launch the Registry Editor (Regedit.exe).
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters.
Select the CrashOnCtrlScroll value, pull down the Edit menu, and select the Delete command.
Close the Registry Editor and restart Windows XP.
Note: Editing the registry is risky, so make sure you have a verified backup before making any changes.

Additional Note on the steps provided to create a BSOD :
Hackers can make use of this trick to crash your computer over and over again by simply creating a .vbs or .bat file which will change the values in the Registry, and then pressing the keys needed automatically.

References:
-http://en.wikipedia.org/wiki/Blue_Screen_of_Death
-http://psacake.com/web/jr.asp

Fixing the BSOD : http://support.microsoft.com/kb/958233


Thank you for reading.
Cyber Frost

Search