10 ways to diagnose and troubleshoot computer failures

Diagnose and troubleshoot computer malfunctions, which are the skills that should be available to run a computer. The following 10 methods are available--Registry recovery method, streamlined startup method, logged tracking method, program escalation method, etc.

Environmental inspection Law

For some unexpected hardware failures, such as no display on the boot. Let's not think about it in depth, because we tend to overlook some of the details. First of all, we should look at the obvious things: if there is a power supply? is the switch turned on? is the power outlet plugged in? Is all wiring connected? Perhaps the root of the problem lies in it.

CMOS reduction method

Some users are often curious to change the motherboard CMOS some settings, which is precisely the cause of the failure of a major reason. If the computer fails, then we can fix the problem by restoring the CMOS settings. The method is very simple, after the boot press the "Delete" key to enter the motherboard CMOS, select the "Load Optimized Defaults" (load default settings), press "Y" key to confirm, save exit CMOS can.

Registry Recovery method

Some users like to modify the registry to achieve the system's optimization settings or personalized settings, but also some users in the Internet browsing by malicious program changed the registry, some failures are due to abnormal registry changes caused. At this point we can restart the computer, and switch to MS-DOS mode, in the C-packing directory to enter and execute "Scanreg/restore" into the registry recovery interface, and then select a computer in good condition registry file, for "restore", To achieve a recovery of the registry.

Streamline Startup method

Some of the computer failures after we installed some software appears, if the computer can also enter the operating system, then we can start the menu, run the "msconfig" program, close the boot menu in addition to the "Internat.exe, Scanregistry, Systemtray "All programs outside of". If the failure does not recur after restarting the computer, the problem is mostly caused by a startup software.

Logged Tracking method

If the computer has not been able to get into windows or is not normal, then we can start the computer in logged (Bootlog.txt) so that the generated Bootlog.txt file can record where the failure occurred. The way to start by using the logged method is to press the F8 key on the keyboard when the system is started, the boot menu will appear, choose to start in logged mode, restart the computer with the Windows boot disk after the failure occurs, Then copy the Bootlog.txt file in the C-packing directory to a floppy disk and open the file on another computer, and you will find that the entire process of Windows startup is documented and the source of the problem can be found.

Device substitution method

A device replacement is when you suspect which device is having a problem, replace it with a device with the same function (preferably the same model), and if the problem disappears after the replacement, then most of the equipment is in trouble.

Minimum System method

If you are unsure which hardware is having problems, you can use the minimum system method to determine. The minimum system method is to remove other hardware devices in the system, only the motherboard, memory, graphics card three basic components, and then power on to see if there is a failure. If so, you can troubleshoot other hardware problems, which should come from the existing three hardware. If not, add additional hardware one by one to see what hardware has failed after you add it, and then deal with the hardware after you find the fault.

Program Upgrade method

Since hardware updates are fast, and most hardware vendors are developed prior to software development, drivers that match hardware may have minor bugs when they are just released and need to be updated by constantly updating the drivers to compensate for these flaws. Therefore, upgrading the driver is also an effective way to resolve hardware failures.

Software Testing method

Diagnosing hardware failures usually requires some information about hardware, but many people do not have the habit of recording hardware information or how to record them. After a computer failure, you may not be able to access the system, this time we need a DOS test hardware tools, such as HWInfo for DOS, its size is only 582KB, placed in a floppy disk can carry, with the help of it can be diagnosed with hardware failure.

Change Resource Law

Many computer failures are caused by resource conflicts between hardware, which we can use to change the resources of the method to solve. Click "My Computer" with the right mouse button, in the Drop-down menu, select Properties, click Device Manager, select View Devices by type, and if a device is marked with a yellow exclamation point in the list, there is likely to be a resource conflict between the hardware. The way to change resources is to double-click the hardware marked with an exclamation point with the left mouse button, select resources, remove the checkmark before using automatic settings, select Change settings, and change the conflicting resources.

Author: Gu Hongtao Internet and search engine IT technology website optimization online Henan SEO Marketing blog sharing learning, copyright learning Address: http://www.guhongtao.com/