How to troubleshoot a laptop blue screen

Computer appears "blue screen" there are two kinds of situations, one is caused by the software, the other is caused by the hardware, software caused by the "blue screen" fault, general reload system can be solved. But you can also not reload the system to solve. And the hardware caused by the "blue screen" fault, according to the specific situation to solve separately.





one, software caused by "blue screen" fault





1, damage or loss of important files can cause a "blue screen" failure (including viruses).




"Blue screen warning" occurs when important file losses such as VxD (virtual device driver) or. DLL (Dynamic Connection library) in
win. The solution is to use "EXT" in the Startup disk of win to recover damaged or missing files, as follows:





(1), start the computer with the starting disk of win first, typing "Ext" command under the prompt;





(2), in the hint "pleaseenterthepathtothewindowscabfiles (a):" After the input win installation compression package is located in the full path, enter, such as "E:PWIN2003WIN2003;





(3), after the prompt "Pleaseenterthename (s) ofthefile (s) youwanttoextract:" Enter your missing file name, such as "BIOS." Vxd ", carriage return;





(4), in the decompression path prompts "Pleaseenterpathtoextrctto (' Enter ' Forcurrentdirectory):" After the input file will be decompressed to the full path, such as "C:windowssystem" and enter, The following prompts, as long as you press Yes to enter, you can restore the system after the new boot. Note: Write down the missing file name in advance for recovery)





virus causes, can use antivirus software to antivirus, and timely restore before the poisoning of the backup; If you can start the graphical interface, you can take the motherboard and display card driver, and the "System file Scan" to restore damaged or missing files, can be found from the system tools in the attachment in the Start menu.





2, registry corruption causes the file to point to errors caused by the "blue screen"





When the registry is changed or corrupted, a "blue screen" appears on the power-on or when the program is invoked, and the screen has an error message (including the file name of the error).





--The workaround is to restore the registry backup, restart the computer, switch to MS-DOS, enter the Windows subdirectory, type Scanregregstore, and return to the last registry





3, after the uninstall program appears "blue Screen", mostly because the program uninstall is not perfect caused





Workaround: First note the file name of the error, and then go to the registry to locate the following branch "Hkey_local_machinesysytem Currentcontrolsetservicesvxd" and enter the file name of the error in "Find". Check the key value to delete.





4, in the System.ini file error caused by the "blue screen", because the software uninstall or installation is not immediately updated System.ini caused by "blue screen"





Workaround: Disable the registry or reload the appropriate software or driver;





because of Win98 's SPL and Microsoft's Vxd_fix.exe patches play an important role in Win98 stability, you can download patch Huajun to the Vxd_fix.exe Web site.





5, blue screen
caused by exhaustion of system resources




This type of failure is mainly related to the occupancy of three heap resources (system resources, user resources, GDI resources).





-Open the Resource Monitor, look at the remaining resources, such as the three resources are at 50% or lower, it is very easy to "illegal operation", "blue Screen", "panic." Therefore, it is necessary to reduce waste of resources, reduce unnecessary program loading, avoid running large programs (such as graphics, sound and video software) at the same time, such as load scheduler, input method and voice indication, DOS driver of sound card, System Monitor, etc.





6, Direxctx problem caused by "blue screen" fault





If the version of DirectX is too high, too low, the game is incompatible with it or not supported, the secondary file is missing, and the video card does not support it, it can cause this failure. Upgrade or reload DirectX, try to update the BIOS and driver for the video card, or upgrade the video card.





7. Software incompatibility caused.





second, the hardware caused by "blue screen" fault





this kind of breakdown mainly has the following kinds:





1. Memory overclocking or unstable. The main random "blue screen". Restore normal frequency of operation, or find a good memory to replace, generally can solve the problem, but also pay attention to and CPU memory is very close to the heat problem.





2. The "blue screen" caused by poor compatibility of hardware. Because the DIY door is compatible with the machine, did not have a perfect monitoring, so as to leave the trapped, such as different specifications of the memory strips, such as the Swap memory bar inserted in the wrong place, or replace the same specifications, manufacturers, batch number of memory can solve the problem. and the quality of the memory bar directly affects the stability of the system, should pay special attention to.





3. Hardware thermal problems can also cause "blue screen." This kind of fault, often have a certain law, generally in the computer running for a period of time before appearing, the performance of the "blue screen" crash or random restart, the solution is very simple, do not arbitrarily overclocking, to strengthen the cooling in the machine.





4, I/O conflict can also cause "blue screen." This phenomenon is relatively small, if it appears, you can remove the device from the system with a! or number, restart the computer, generally can be resolved.





Third, install XP caused by "blue screen" fault





now many notebooks are pre-installed with Vista operating system, many users do not like this fancy systems, but also to the classic Windows XP, but in the installation of XP often encountered a blue screen and can not be installed successfully. In fact, the notebook in the installation of XP blue screen 99% are due to the compatibility of the SATA hard drive XP. Before installing the system, as long as the hard drive in the BIOS to modify the working state to "compatible mode", you can successfully install the XP.





How to prevent the notebook to appear blue screen?





With the increase in the number of notebook users, notebook glitch has become the most headaches. Even some glitches or conflicts can cause the notebook to be used in a sudden blue screen, and even automatically restart. Today we'll take a look at how to solve the problem of the laptop blue screen.





Upgrade Notebook BIOS





as a general rule, notebooks are likely to have some flaws in their design when they are shipped, and vendors typically use the upgrade BIOS method to fix these bugs. If we have a blue screen in the process of using the notebook brain, we can take the upgrade BIOS to solve the blue Panel fault.





specific implementation: First download the BIOS refresh program from the manufacturer's website and BIOS update files. Then run the BIOS refresh software, and select the BIOS file we downloaded (this download must choose to adapt to this model of the machine's BIOS files, if the brush write error will cause the machine can not work). Finally, choose Refresh to automatically refresh the BIOS. The machine automatically restarts after the refresh, and in the self-test information we can see that the BIOS version has been updated.





properly install hardware driver





after the BIOS has been refreshed, some notebooks will still have a blue screen reboot, and in this case we have to check if a hardware driver is not properly installed, or if some of the latest installed hardware does not work. Enter "My Computer" → "Control Panel" → "System" → "Device Manager" to see if your notebook hardware is improperly installed or where there is a conflict.





Specific implementation: If you encounter a device with a question mark flag, then we need to go to the relevant hardware manufacturer's website to download the latest driver, and then reset the driver can be installed on the notebook. If you encounter a blue screen after installing new hardware and the replacement driver is not valid, it is likely that the hardware itself or the driver of the hardware has a compatibility problem with the notebook or the operating system, and we just need to remove the hardware or disable the hardware in Device Manager to resolve the problem. 3lian.com





Adjust the hard disk cache





In addition, when the capacity of the system partition is too low, the machine virtual memory value is likely to be too low, which will also cause the blue screen. This problem occurs when we release the hard disk space or let the system automatically set virtual memory to solve the problem.





specific implementation: The simplest way is to delete the system partition (typically C disk) in the temporary files, keep the system remaining space around 1GB. If it is true that the files in the C disk cannot be deleted, then we can also enter the "My Computer" → "Control Panel" → "System" → "Advanced" in the "performance" option to set. Locate the virtual memory option to set the drive paging file size from custom size to system management size, which solves the problem of a machine blue screen restart due to low system disk capacity cache.