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Troubleshooting Tips For Laptop Owners When Your Laptop Suddenly Switch Off

It can be so annoying that at one moment you are sat there working on your laptop. Then without any warning everything on the screen just disappears and all you are left with is a blank screen! The laptop has mysteriously switched off.

Obviously the first thing that you are going to check are all your leads to make sure the power cable has not come loose and inadvertently shut down your laptop. If is not the case and your power adaptor is still plugged in correctly then the first thing to try is to unplug your adaptor and try to do a power cycle.

This may sound quite complicated but in effect it is quite easy to do. Step one is to unplug any power source linked to the laptop. After this you must disconnect any external devices that your have linked to your laptop.

Once you have completed those steps you need to remove your battery. After removing the battery from your laptop just press and hold your power button down.

It may sound a silly thing to do given that you have just taken out the battery but this does in fact work in a lot of cases. This is due to the fact that if you have been using a laptop for a while you could have some static build up in some of your internal elements of your laptop.

This in effect can make your laptop shut down by itself occasionally. This process may sometimes work when you lose an internet connection.

Once these steps have been completed you should check your power source and your battery separately. If the laptop works with the battery and not the power source the chances are that your power adaptor is faulty. If the laptop works with the power source but not just on the battery then you probably need a new battery.

Some laptops have warning lights for different errors. If this is the case with your laptop then you should just be able to check the user’s manual for any faults.

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Network Troubleshooting Commands – You Should Know These

Network troubleshooting tools are a necessity for every network administrator. When getting started in the networking field, it is important to amass a number of tools that can be used to troubleshoot a variety of different network conditions.

While it is true that the use of specific tools can be subjective and at the discretion of the engineer, the selection of tools in this article has been made based on their generality and common use. This article reviews the top 10 basic tools that can help you troubleshoot most networking issues.

IPCONFIG. Short for Internet Protocol Configuration, ipconfig is used on windows to display the PCP/IP configuration such as IP Address, Subnet Mask, Default Gateway, DNS Server…

IPconfig is a troubleshooting command as well, as shown below

  • ipconfig /release is used to release the computer’s IP configuration, and prepares the network adapter to get a fresh TCP/IP address configuration.
  • ipconfig /renew allows the network adapter to get a new TCP/IP configuration.

PING. Short for Packet Internet Groper is used to test connectivity between two network devices. The host device sends an Internet Control Message Protocol, known as an ICMP Echo Request, the destination node then responds with an ICMP Echo Reply.

PING 127.0.0.1 This IP address is used in conjunction with ping to test the loopback address on computers. The tool is very handy and would be the first to try when network issues ever occur. The IP 127.0.0.1 is a class A address that has been a reserve for the purpose of testing that the network card and the TCP/IP stack work fine.

Traceroute or Tracert in windows is used to display the path taken by an IP packet, from the source to the destination computer.

TELNET (Telecommunication Network). It is a command used to access another computer remotely. Also known as a command request, is the most utilized by network administrators. A Telnet request may be accepted or rejected by remote computers; depending on the permission you have you may be prompt to enter a username and password. Example below:

Microsoft Telnet> o

( to ) 192.168.1.1

Connecting To 192.168.1.1…

The above telnet command was used on Windows 7, and could be different on other operating systems. Telnet is not enabled by default on Windows 7 as it is on Windows XP, it has to be done through Control Panel.

Nslookup. Most used by network administrators, nslookup command is a tool used for DNS (Domain Name System) Testing and Troubleshooting. It is advisable to learn how DNS works before using this command. Example below:

C:UsersBerbo>nslookup “just for illustration”

Default Server:  SE572

Address:  192.168.1.1

Hostname. Used across a verity of platforms, the command is used to configure or find the name of a computer or other network device. An example below on windows:

C:UsersBerbo>hostname

Berbo-PC

ARP. Short for Address Resolution Protocol, ARP is used to find a MAC address or physical address when only the IP address is known. Example below:

C:UsersBerbo>arp -a

Interface: 192.168.1.11 — 0xb

Internet Address      Physical Address      Type

192.168.1.5           00-01-e3-ef-69-b0     dynamic

192.168.1.255         ff-ff-ff-ff-ff-ff          static

224.0.0.22            01-00-5e-00-00-16     static

Network commands are great tools used by computers and networks, administrators to manage the network. The list of commands shown and described above is not exhaustive, there are many more and it is advisable to do some research on your own. We have seen the basic commands, which might help to troubleshoot within a home or medium-size network.

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Troubleshooting When Your Computer Freeze (Lockup) Problems

How familiar does the following sound? Your computer was working fine, but then suddenly started locking up (aka hanging or freezing), rebooting itself (crashing), or shutting down spontaneously? If you know only too well what I am talking about, then read on! Performing the simple steps below can fix the majority of lockup cases.

1. Check for recently installed software or hardware.

If the lockups started to happen after you installed a new piece of hardware, new software programs, or new drivers, uninstall it and see if the problem goes away.

2. Run your antivirus program.

One of the first things to do in the case of sudden lockups is to run your antivirus program. Check your antivirus manufacturer’s website for updates and the latest virus definition files. (This is absolutely necessary, outdated antivirus is not going to be of any use!) If you don’t have antivirus software installed – or if updates are unavailable – run one of the web-based antiviruses scans that some major antivirus vendors like Trend Micro are offering for free. You can find a comprehensive list of available web-based scans and free antivirus programs on http://www.free-antivirus.info.

3. Run some good spyware removal tool.

If your machine is not infected with any viruses, it is still possible that it has some harmful adware or spyware is present. Download and run some good spyware removal tool such as AdAware or Microsoft AntiSpyware. Check http://www.free-antivirus.info for a list of free spyware removal applications.

4. Check for free hard drive space.

When no viruses are found, check out free hard drive space on drive C:. Make sure there is more than 20% of free space available; low disk space can lead to random lockups.

5. Check for overheating.

Overheating is another known cause of lockups. It can be caused by problems with fans inside the case, dust buildup, or other cooling problems. Make sure the power supply fan and CPU fan are running and free of dust buildup. You can check the temperatures inside the case by running Motherboard monitor http://mbm.livewiredev.com – make sure the temperatures are within the preset limits. Be very careful while cleaning inside the computer case (use plastic vacuum crevice tool) and NEVER OPEN THE POWER SUPPLY CASE as it contains high voltage.

6. Check the hard disk.

Check the hard disk – it is possible that its logical structure is corrupted. To check the disk for errors, right-click on the disk C: icon in “My Computer”, select the “Tools” tab, check all checkboxes in the “Check disk options” field, and press the “Check now” button. It should ask whether you want to schedule the check next time you restart your computer – answer “Yes” and restart your PC. The check will be performed automatically after startup; it can take a while, so be patient. The program will attempt to fix some problems automatically – however, if the hard disk is failing physically, it will need to be replaced. It is also a good idea to run Disk Defragmenter (located in Start Menu > Programs > Accessories > System Tools) to optimize data placement on the hard disk for increased performance and reliability.

7. Check the memory.

Sometimes random lockups can be attributed to computer memory (RAM) starting to fail. You can test the memory by running Windows Memory Diagnostic that can be downloaded from http://oca.microsoft.com/en/windiag.asp. If memory problems are found, try re-seating the RAM (pull it out and plug it back in). If it doesn’t work, replace the defective RAM.

8. Check for other hardware problems (advanced users).

More hardware-related problems can be diagnosed by running hardware tests from the Ultimate Boot CD that can be downloaded from http://www.ultimatebootcd.com. However, you should only use it if you know what are you doing – some programs on that CD can be dangerous when used inappropriately (for example, some of them can wipe the contents of your hard disk).

9. Update Windows and drivers.

Some lockups can be caused by outdated software components – update your windows and drives by running a windows update: http://windowsupdate.microsoft.com (it’s a good idea to run it regularly).

The above steps will help diagnose and eliminate the most common causes of lockups. Hundreds more of other possible scenarios need to be dealt with on a case-by-case basis, as it all goes down to your particular computer configuration. Asking on PC troubleshooting forums/newsgroups should help you figure out solutions to not-so-obvious lockup cases.

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Troubleshooting Tips to Repair Illegal Operation When Happen to Your Computer

 

“Illegal operation” is one of the most common error messages that appear on a computer stating that an illegal operation has been performed and the program should be closed due to it. When confronted with this error, most of the users think that they accidentally clicked on something, which they are not supposed to do. But, the reason being that the program contains a command, which the program is unable to perform, and it can’t continue running.

Illegal operations can be caused by several other factors including, third party applications are causing memory conflicts, data is not being properly read from the required source, corrupt files, computer virus, error in program coding, corruption or problem with Windows, etc. In case you have encountered an “Illegal operation” error message, following the given below the computer troubleshooting tips can help to fix errors on your computer.

Step 1. Third-party applications running in the background is one of the most common reasons for illegal operation. In case, you are encountering this problem when trying to run a game or program, it is recommended to remove the third-party applications running in the background ensuring that these applications are not the cause of the problem.

Step 2. If you are running a program from a CD or a floppy disk, verify that the disk does not have any physical error.

Step 3. In case your computer memory is loaded with a computer virus and has changed the data of program files when infecting a computer, it may result in this error. Therefore, it is always recommended to install your system with the latest virus definition.

Step 4. If you are receiving an error message while running a particular program, check the program’s compatibility with the version of the Windows operating system you are running.

In case, you are unable to locate the cause of illegal operation, you can try fixing it using tools included in Windows. The scan disk tool and disk defragmenter can help you to resolve this issue.

Limitations

Sometimes locating the cause for illegal operation error messages is quite difficult.

Recommendations

If you continue to experience illegal operation errors while working with an application, it is always recommended to contact software vendor.

You can also contact any technical firm that offers technical support services to deal with all issues you are encountering with your PC.