Troubleshooting system
First, the crash problem:
What is a crash : in the ordinary course of using a computer, a display screen freeze, no response mouse, keyboard does not respond. Press the mouse button or keyboard key and release, approximately 30 sec no response.
Crash reasons:
1 , the software deadlock: software BUG cause contention occurs between a deadlock or more software resources caused by software running operation of a deadlock; large software running on a machine configuration is low, often crash occurs; Software and Hardware compatible cause crashes.
2 , hardware failure: Hardware quality problems (poor quality hardware, such as memory, hard drives, radiator); cooling system failure ( the CPU cooling, graphics, memory, hard drive is very important), so that the machine remains clean, to enhance heat dissipation is important; OC prone to frequent crashes and restart; improper mounting hardware, loose connections, cause crashes; insufficient power supply, when the system power is increased, causing frequent crashes.
Solution:
1 , the heavy machinery: software crashes due to deadlock, can press the Reset button to reboot the machine to restore the system.
2 , when powered off: press the power button to turn off the machine. After a while you press the power button to restart. If you can start, then the cooling system may have a problem or power shortage, leading to job insecurity hardware, causing the crash. Should replace the CPU , graphics, etc. of the cooling fan, the cleaning system environment; or replace larger power supplies.
3 , frequently, there are regular crashes, you should check the system hardware is connected properly, no loose; whether the target computer work environment; software and hardware compatibility issues; quality computer hardware.
4 , for the software and hardware is not compatible, it can be replaced appropriate software and appropriate software versions, with the appropriate operating system or directly by the software update system hardware configuration requirements.
5 , the usual attention to clean up the hard drive, defragment your hard disk, the system can reduce the number of anomalies.
Second, the blue screen problem:
What is blue screen : refers to the Windows system startup or running them suddenly stopped, the screen is blue, and there is an error message phenomenon.
Blue Screen reasons:
The direct cause is usually due to the Windows kernel unrecoverable error. Indirect causes may be caused by hardware drivers failures, such as: flawed, is not compatible with the system, as well as the hardware itself job instability.
Solution:
(How to restore the system, so no blue screen)
1 , reboot the system. For occasional blue screen can do so.
2 , into safe mode, uninstall the software installed.
3 , the safe mode, offload hardware installation (hardware drivers).
4 , replace the appropriate software and the use of appropriate software version.
5 , check the system hardware, focusing on system hardware memory, video cards, sound cards, network cards and other settings, connections, if appropriate.
6 , to ensure that the use of hardware, hardware drivers and the operating system used is compatible.
7 , if you still can not restore the system, then, need to re-install the system.
Third, a black screen and re-starting questions:
What is a black screen : refers to the computer is turned on, you can not start, freezes during startup, the screen background is black with white text, and did not enter the operating system state.
Black reason:
l operating system reasons:
1 , system files are accidentally deleted, the files for Win9X , WinMe operating systems is very important, such as Command.com , the Io.sys , the Msdos.sys and other documents are deleted. Because Windows 9x start to read the System.ini , the Win.ini and registry files, if the Config.sys , Autoexec.bat file, both files will be read. As long as there is error information in these files are likely to crash, especially the System.ini , the Win.ini , the User.dat , the System.dat these four documents is particularly important.
2 , the system registry is damaged, for Windows2000 / XP is very important.
3 , a hardware failure.
l Hardware reasons:
Graphics, display failure (display not open, or brightness); a power failure, the system will not start; the BIOS software damage; memory corruption.
Solution:
1 , the use of the system installation disk repair system.
2 , using the installation disk or system registry repair tools ( Windows2000 / XP system).
3 , reinstall the system.
4 , replace the defective hardware. Re-install the operating system again if necessary.
Fourth, the Internet is not the problem:
What is not the Internet : You can not use the Internet refers to the IE browser can not access the destination site.
Why can not the Internet:
1 , the purpose of the site is not closed.
2 , the website set up IP restrictions.
3 , related network communication protocols are installed correctly. Mainly the TCP / IP protocol.
4 , the machine IP address setting error, including the subnet mask setting error, if it is dynamically assigned IP addresses, the DHCP about the server.
5 , the DNS setting error.
6 , the gateway is set incorrectly.
7 , itself blocked by a firewall ( Windows Firewall and third-party firewall software, such as Skynet firewall).
8 , the local loop network unreasonable. Ping 127.0.0.1 failed.
9 , IE software itself is the problem, mainly software Bug and settings, including viruses and hacks that would cause IE is not working.
10 , viruses, Trojans and worms infection. Such as: Arp Sniffer .
Solutions can not access to the Internet:
1 , kill virus, anti-trojan and worms
2 , repair the network connection
3 , reinstall the TCP / IP protocol.
4 , reconfigure the firewall itself.
5 , using software tools, such as super rabbit recovery and other IE browser.
6 , reinstall IE
7 , reinstall the NIC drivers
8 , re-install the operating system
Five, anti-virus and firewall software issues:
- antivirus software:
The basic structure of antivirus software:
1 , real-time monitoring of some antivirus software
2 , killing some antivirus software
- Use antivirus software:
Real-time monitoring to the rear part of the monitoring have strange, it should be noted that the system anomalies, abnormal situation should be timely launch antivirus software for comprehensive killing.
- Firewall software:
The basic role of the firewall software:
By blocking software and network packet filtering, to achieve the purpose of limiting unauthorized access to the machine and the network.
- Use firewall software:
Configure the firewall, shielding off dangerous ports, such as TCP port: 135-139 , 445 port, as well as the associated UDP port to prevent malicious access to the machine. Masked unknown software access to the network, to prevent access to the machine information through the software, the remote control unit.
VI Summary:
cause of issue:
1 , software reasons
2 , the hardware reasons
3 , software and hardware compatibility reasons
To achieve the purpose of solving the problem
1 , to abandon changes to the system returned to normal state before failure
2 , troubleshoot update appears in, and update the system.
Solution:
1 , restart the machine, comprising a heat or cold boot.
2 , uninstall the software recently installed, reinstalled.
3 , uninstall the newly installed hardware (in fact unloading of the hardware drivers)
4 , dial the newly installed hardware (hardware will be removed from the machine)
5 , check the relevant hardware (memory, sound card, graphics card, the CPU , hard disk, CD-ROM, floppy drive) is installed properly, a good connection, no loosening, set the hardware device correctly, properly, system hardware COMS settings are correct .
6 , cleaning the cabinet environment to ensure the cooling, generally best not to overclock.
7 , reinstall the operating system
8 , if not enough, then successive parts replacement, look at that part is defective, replace faulty hardware.
Solution Summary:
Software problem is solved by reloading software; hardware problem is solved by replacing the hardware. Hardware and software compatibility issue by changing the hardware and software settings or replace the software and hardware to solve.
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