Safe Gaurd your PC - BEST Security Tips

Happy New Year to all my readers! I wish you the best of health and happiness in 2014.

With that said, I need to remind everyone to be alert during the New Year’s Eve celebrations for people who fire guns into the air. The minute you hear gunshots, please call police immediately.

This past week, I received emails from several seniors and parents who just got their first computer and shared many concerns. The computer is a wonderful invention but it can also bring nightmares. I pulled some information from one of our crime prevention partners, The National Crime Prevention Council, and here are tips you need to take seriously whether you are a senior or a parent:

• Use anti-virus software and keep it up-to-date. The software is designed to protect your computer against known viruses but, with new viruses emerging daily, anti-virus programs need regular updates.

• Don’t open emails or attachments from unknown sources. Be suspicious of any unexpected email attachments even if they appear to be from someone you know. Should you receive a suspicious email, the best thing to do is to delete the entire message, including any attachment.

• Protect your computer from Internet intruders by using firewalls. These create a protective wall between your computer and the outside world. They come in two forms, software firewalls that run on your personal computer and hardware firewalls that protect a number of computers at the same time. Firewalls also ensure that unauthorized persons can’t gain access to your computer while you’re connected to the Internet.

• Use hard-to-guess passwords. Mix uppercase and lowercase letters, numbers and other characters, and make sure your passwords are at least eight characters long. Don’t share your password and don’t use the same password in more than one place. Don’t use your maiden name or the names of your mother, your children or your spouse’s family. Those are easy to figure out.

• Disconnect your computer from the Internet when not in use. This lessens the chance that someone will be able to access your computer. Also, if you haven’t kept your anti-virus software up to date or don’t have a firewall in place, someone could infect your computer.

• Check your security on a regular basis. You should evaluate your computer security at least twice a year. Do it when you change the clocks for daylight savings, just as when you check the batteries in your smoke alarm.

• Back up your computer data on disks or CDs regularly. I use a thumb drive. If we have a hurricane, I can take it with me. There is nothing worst than losing pictures, information and work when a computer crashes. It happened to me, and you will want to cry, which I did.

Last I want to remind all parents that if you gave a computer to your child, no matter what age, please make sure that the computer is somewhere you can see it. For more information on internet safety, visit www.ncpc.org or email me and I will send you some brochures.


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What is FAT in Computer Hardware?

FAT is a type of File System. Which allocate the files we saved in a systematic order.
File Allocation Table (FAT) is a legacy file system that still remains in wide use today; the naming of the system is a reference to the prominent role of the file index table which is created when the FAT disk is formatted.

Originally used for floppy disks and later for personal computer hard drives, FAT was the file system of choice for all DOS and later Windows computers throughout the 1980s and 1990s. Although inferior to modern file systems in many ways, FAT is such a fundamentally simple file system that modern computer systems still support it and it is still used for things like removable media such as flash drives and camera memory, as well as hard drives that will be shared across operating systems.


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Increase the Performance of YOUR PC-LAPTOP- REMOVING DUST

Dust Causes of Noise in a CPU and how to stop it

Noisy CPU
It is very much irritating to work with a noisy CPU. You will only realize how noisy the machine has been immediately you switch it off. Many people will just assume it provided it is working and they can accomplish what they want. Your computer should be as calm as possible and provide a cool working environment.

What makes CPU noisy?
The major probable causes are;

• Dust
• Fan

Dust

The Computer will always collect dust regardless of the environment. This is because the air sucked in the CPU can have some tiny particles. After accumulating for some time, it is visible in form of a white-cotton like substance. The dust build up blocks the air vents causing thermal shutdown to the computer. In some cases depending on the environment, dust is collected when cleaning is done and the machines in that room are uncovered. Heat attracts dust particles and the dust can get electronically charged causing short circuit in the motherboard. When the fan blocks or its RPMs are reduced, the processor does not get enough air to cool it hence it heats up and lowers the performance. This is when you will find the computer freezing, you try to give commands but they can't be carried out.

• Fan

In connection to dust, the fan can slow down or sometimes stop rotating completely. When it stops, it means that there is no heat dissipation thus the heated up air is retained in the CPU. The heat sink which is in direct contact with the Processor becomes heated up without cooling. A cut/disconnected fan power cable can also make the fan to stop working so this also should not be ruled out when diagnosing the causes of overheating.
Now that the noise is there, how do I stop it or prevent it in future?


1. Blowing Dust
Use a dust blower (with compressed air) to blow off the dust from the inside of the CPU. When doing this, ensure that you have a dust mask to prevent the dust from getting into your respiratory system. It is always wise to unplug the power from the mains before doing this. Leave the I/O cards intact when blowing because if removed before blowing, dust can fall in to the bus connectors and cause poor connection after re-installing them. Place your CPU in an open airy place then blow the motherboard as well as the fans both on the CPU and the vent holes in the power supply. This service should be done regularly to prevent the dust build-up.

2. Apply Thermal Paste

Also known as heat sink paste is a gel applied between the heat sink and the processor to help in heat conduction. It does this by filling the tiny air gaps left when the smooth heat sink surface gets into contact with the processor. Remove the heat sink locks to gain the access of removing the processor from the socket.Before applying new paste, make sure you scrap off the old and dried up paste. Apply a small amount of the paste then spread evenly being careful not to spill it on the motherboard.
3. Allow enough air flow
Always make sure that your CPU is placed in a position where there is enough air circulation. Placing it so close to the wall or blocking the air vents can block the air from flowing hence causing overheating.
4. Cover your Computer
It is always advisable to cover your machine when not in use using the dust covers. This will prevent the dust from getting in mostly when the surroundings are being cleaned.
With these practices you will ensure a smooth running of your CPU and at the same time save you a great deal from damages that can be caused by crashing.
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