Showing posts with label Safety. Show all posts
Showing posts with label Safety. Show all posts

Saturday, February 1, 2014

[How-To] Maximize Your Laptop's/Notebook's/Netbook's Battery and Performance



It's been now several years with my old trusted laptop and very rarely it has let me down, other than the case where I had to change the motherboard, but it's lasted me a good five years and I've used it roughly and it has been on numerous trips with me to many places around India.

Today, I’ll be showing you ways and methods to recuperate those and maximize your battery life. Some of the steps may require you go into the Basic Input/Output System (BIOS) or Unified Extensible Firmware Interface (UEFI) of your laptop / notebook / netbook, and others would be simple software tweaks.

Every laptop / notebook / netbook user wants a longer battery life, but only a few know how to get it without buying a new laptop / notebook / netbook. Even though manufacturers have made great developments and improvements over the past years in increasing the efficiency of their products, even the most efficient batteries aren't lasting long enough for today's users.

You would not have realized this, but your laptop / notebook / netbook even though it is brand new is loaded with integrated peripherals and bloatware (read manufacturer customization's and branded software) that you won’t use and consumes more resources than needed and reduces your laptops / notebooks / netbooks battery life.

Before we go into the nitty-gritty of things, firstly you should do a full review as to why batteries die in the first place. From the basic components like the CPU to the track-pad/mouse-pad, each and every component of the laptop / notebook / netbook consumes power. The amount of power consumed varies from one component to another component and also fluctuates based on factors and conditions such as core/system temperature and processor/system workload.

The higher the number of components / peripherals attached to your laptop / notebook / netbook and the more amount of work you do with it, the quicker the battery will drain. Every background program, driver, or service that loads, and every electronic circuitry that is used uses a teeny-weeny bit of battery power. Thus, reducing the number of attached or active peripherals and minimizing the load placed on the laptop / notebook / netbook will increase the batteries life.

Most of the manufacturers or vendors customize their laptop's / notebook's / netbook's to their liking and they are not easy to hunt down and remove or eliminate. So you, as the owner, have to make an effort to minimize this resource consumption and maximize the battery life.

Some of the immediate things you can do with a new purchase or even on older laptop's / notebook's / netbook's is by:

  1. Keeping your laptop's / notebook's / netbook's cool
  2. Dimming its display
  3. Enable system hibernation

In this how-to I’ll be focusing on things that will illustrate the benefits of modifications and tweaks

There are a number of hardware and software tips, tricks, and tweaks and to increase your laptop's battery life. However, some of these tips, tricks, and tweaks may cause your laptop's / notebook's / netbook's to function under par or to even cease to function. So, it is, therefore, imperative that you should take this advice with a pinch of salt and be very careful. Even though I have tested these tips, tricks, and tweaks on my own laptop, I will not and cannot guarantee / warranty that they will, would, could, or should work with your hardware.

Therefore, with this thought in mind, in no event shall I be liable for any damages whatsoever (including, without limitation, damages for loss of business/personal profits, business/personal interruption, loss of business/personal information, or other pecuniary loss) arising out of the use of or inability to use the advice, even if you have been advised of the possibility of such damages. You also agree that I will not and cannot be held liable for any deleterious and/or injurious changes that might occur as a result of you following the tips, tricks, or tweaks mentioned in this guide.


ALWAYS MAKE A BACKUP BEFORE YOU CHANGE THINGS IN YOUR SYSTEM AND YOU KNOW IT MAY BECOME WORSE OR BAD.

Every electronic component (such as diodes, transistors, integrated circuits, optoelectronic devices, valves, discharge devices, resistors, capacitors, magnetic (inductive) devices, networks, transducers, sensors, detectors, antennas, assemblies, modules, prototyping aids), be it active, passive, or electromechanical use power when they are used. When they are not used in any function, they contain static power which is just static energy.

Disabling and/or disconnecting unused and unwanted peripherals will improve battery life immensely. Software-wise disabling, uninstalling, or removing unnecessary applications and/or services will greatly help conserve power consumption. In addition to that, updating drivers (it would be video drivers most of the time) helps by letting the system optimize or transfer some processes, such as video encoding/decoding, games, playback from the CPU to a relatively power-efficient and dedicated graphics processor.





Image Credit: TechGYD

[ABOUT: Devesh Prabhu is an avid blogger and has been blogging posts and rants on many subjects through his various blogs. He has been associated with the blogosphere for the past 8/9 years and inadvertently left the blogging scene albeit to concentrate on his personal life, but his desire to be among his readers brought him back.]

[NOTE: The article "[How-To] Maximize Your Laptops/Notebooks/Netbooks Battery and Performance" first appeared on the Komputer Knowledge Blog.

[DISCLAIMER: All content provided on this blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information. These terms and conditions of use are subject to change at anytime and without notice.]


Saturday, December 14, 2013

[UPDATE] Google Does Away With "Display Images Option" in Gmail



In an unexpected move, Google has gone head and removed the option of clicking the link "Display Images Option" in Gmail and has taken upon itself to keep out inboxes clean on unwanted spam email messages with unwanted images.

A good move indeed.




[NOTE: The article "[UPDATE] Google Does Away With "Display Images Option" in Gmail" first appeared on the Komputer Knowledge Blog.

[ABOUT: Devesh Prabhu is an avid blogger and has been blogging posts and rants on many subjects through his various blogs. He has been associated with the blogosphere for the past 8/9 years and inadvertently left the blogging scene albeit to concentrate on his personal life, but his desire to be among his readers brought him back.]


[DISCLAIMER: All content provided on this blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information. These terms and conditions of use are subject to change at anytime and without notice.]


Tuesday, August 20, 2013

[PC Basics] Where You'll Get Hacked: Common Mistakes, and How to Prevent It [INFOGRAPHIC]

Where You'll Get Hacked: Common Mistakes, and How to Prevent It



Where You'll Get Hacked: Common Mistakes, and How to Prevent It



[Devesh Prabhu is an avid blogger and has been blogging posts and rants on many subjects through his various blogs. He has been associated with the blogosphere for the past 8/9 years and inadvertently left the blogging scene albeit to concentrate on his personal life, but his desire to be among his readers brought him back.]

[NOTE: The article "[PC Basics] Where You'll Get Hacked: Common Mistakes, and How to Prevent It [INFOGRAPHIC]" first appeared on the Komputer Knowledge Blog.

[DISCLAIMER: All content provided on this blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information. These terms and conditions of use are subject to change at anytime and without notice.]



Sunday, August 18, 2013

[PC Basics] Avoiding Viruses the Smart Way: Disabling Autorun Feature

Through the course of this article, I will help you avoid viruses by disabling a system feature that has its roots from the time PCs became mainstream.

An autorun.inf file is a text file that can be used by AutoRun and AutoPlay components of Microsoft Windows OS. For the file to be discovered and used by these components, it must be located in the root directory of a volume.

The AutoRun component was introduced in Windows 95 as a way of reducing support costs. AutoRun enabled application CD-ROMs to automatically launch a program which could then guide the user through the installation process.

By placing settings in an autorun.inf file, manufacturers could decide what actions were taken when their CD-ROM was inserted.

The simplest autorun.inf files have just two settings: one specifying an icon to represent the CD in Windows Explorer (or "My Computer") and one specifying which application to run.

A simple example:
[autorun]
open=setup.exe
icon=setup.exe,0
label=My install CD

- Via Wikipedia


VIRUSES & MALWARE

Autorun.inf can be exploited to allow malicious programs to run automatically without the user knowing.

If you have been infected with the autorun.inf virus, each time you insert the removable media and double-click your drive to open it, the virus file begins executing and infects your computer, which spreads itself on to the computer by making multiple copies of the autorun.inf and .exe files on every drive of your computer.

When your computer is infected, viruses might connect to malicious websites and install key loggers on your PC. Key logger steal your private information like usernames, account numbers, social security, passwords, credit card information, as well as other sensitive information.

It is very important that you remove the virus from the computer to avoid further spread.


AVOIDING VIRUSES & SAFETY

In this modern day and age, very few people have any use of this feature and it is best to disable this so as to avoid being infected with a virus that can propagate itself each time the removable media is inserted.

A very useful tool to remove or to nip it in its bud is to disable this feature altogether and not have Autorun run itself when removable media such as DVDs, USB drives, CDs, or Memory Sticks are inserted in the first place.

The easiest way to disable Autorun in just a few minutes and which will potentially save you from getting infected with a virus that takes time (or money) to clean is by downloading the utility “Disable Autorun.”

Click on the link and download and install the tool. Once it's installed, right click the shortcut on the desktop and click Run as Administrator.

Choose from the following options:

Disables AutoRun on drives of unknown type
Disables AutoRun on removable drives
Disables AutoRun on fixed drives
Disables AutoRun on network drives
Disables AutoRun on CD-ROM drives
Disables AutoRun on RAM disks
Disables AutoRun on all kinds of drives

I would recommend that you select all available options and, if you’re not sure of which options to pick, check the option "Disables AutoRun on all kinds of drives."



Click the Apply button and restart your computer to save and apply the changes. Repeat on other computers around you home or send to a friend to do the same.

[Note: this program must be run with administrator privileges, or you can right click the program and click "Run As Administrator" to run this program.]



[Devesh Prabhu is an avid blogger and has been blogging posts and rants on many subjects through his various blogs. He has been associated with the blogosphere for the past 8/9 years and inadvertently left the blogging scene albeit to concentrate on his personal life, but his desire to be among his readers brought him back.]

[NOTE: The article "[PC Basics] Avoiding Viruses the Smart Way: Disabling Autorun Feature" first appeared on the Komputer Knowledge Blog.

[DISCLAIMER: All content provided on this blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information. These terms and conditions of use are subject to change at anytime and without notice.]


Thursday, May 7, 2009

Speed up a Sluggish Computer

Are you frustrated by your sluggish computer? With regular use, even the newest PC will slow down significantly. Here are some suggestions to free up PC resources and get that computer back in shape!

Instructions

Step 1
Free up PC resources by deleting old programs: get some of that unused space back. In Windows XP go to start -> control panel -> add/remove programs. Highlight any program that you do not use and click REMOVE.

Step 2
Free up PC resources by getting rid of adware and spyware: these two parasites threaten your privacy, expose you to unwanted advertisements and most importantly, slow down your computer. Free programs such as Spybot S&D and AdAware make it easy to remove adware and spyware. Simply install these programs, update them, run a scan and remove the intruders!

Step 3
Free up PC resources by cleaning your start up files. These are files that run automatically as soon as you boot up your computer. Many of them are unneeded and are only taking up space! Besides removing spyware, Spybot S&D can also help you clean your start up files. With Spybot S&D running click the "tools" button on the left. Then click "system startup" on the left. Uncheck any entries that are highlighted in red, as they may be malicious files. Uncheck any entries of any color that are unwanted. Your computer will speed up as soon as you restart your computer!

Step 4
Free up PC resources by cleaning your registry. Easy Cleaner is a program that can help you accomplish this. Make a backup of your registry before deleting registry entries.

Step 5
Clean your junk and temporary files will also free up PC resources. You might be surprised at how many junk and temporary files your computer is storing! Programs such as CCleaner can help you delete these files quickly and easily.

Step 6
Defrag your hard drive. Over time, files become misplaced and this can slow down your computer. Defragging puts files where they belong! In Windows XP, go to windows explorer and right click your hard drive. Scroll down and select properties. Click the tab named tools, and then click defragment now. Finally, select your hard drive and click defragment. Let your computer do the rest!

Step 7
Reboot your computer, your PC resources are now freed up and you should notice a significant boost in speed.

Tips & Warnings
- All programs mentioned in this article can be downloaded for free at majorgeeks.com.
- Be careful when deleting files from your computer.
- Be sure to make a backup of your registry before editing it.
- These steps should be repeated from time to time to ensure that your computer continues running well.

Sunday, May 3, 2009

Keep Your Passwords Secret On A Public Computer

Has anyone ever told you before that it is risky to use a public computer? The main reason for this is because there could be Keylogger software or Spyware installed in the public terminal that can capture your user name and password when you type on the keyboard. Can you imagine your Email/Bank/Paypal password being stolen? What loss would it cause to you?

KYPS is a Web service that allows you to log into your account from a public computer without disclosing your password to that computer. The way KYPS works is very simple: You register your website (be it an email account or any login site) with the KYPS server. Based on the username and password that you have provided, KYPS will encrypt the password and generate a list of one-time codes that you can use to login to your account.

Everytime you want to login to your site, KYPS will prompt you to enter the code from a certain pad. It will then decrypt the code, rebuild the password and auto-login to your site. After that, that particular code will be rendered useless. Even if there is a keylogger software that logs the one-time code, it won’t be able to login to your site. The image below show a graphical explanation of the whole process.

When you first use KYPS, you are required to register your login account with them. During the registration, you are asked to enter your username and password. From here, you can choose how many one-time codes you want to generate. The more codes you generate, the more times you can login to your site without using the actual password.

Once you have submitted the registration, it will prompt you to download a PDF file that contains your list of one-time codes. This is what it will look like:



The number on the left of each column is the pad while the string of characters on the right is the one-time code. Whenever you want to login to your site, KYPS will ask you to enter the code with number XXX. You just match the number to your list, enter the corresponding code and you will be securely logged in to your site.

In case you are worrying that KYPS is a phishing site that is out to collect your password, you can be assured that the password you have entered is not stored in the database. It is only used to generate the one-time codes and will be deleted after that.

If you are still not convinced, you can leave out the password field when registering your site. KYPS will then bring you to another site where you can disconnect your computer from the network and use the java applet to generate the one-time code.

Apart from logging you into your account, KYPS also acts as a reverse proxy that you can use to hide your online trace. All of the website is delivered with the “https” protocol and the URL does not contain the original link of the webpage. In this way, your privacy is protected and you don’t have to worry about other people finding out which sites you have been to.

KYPS may not be the only way to fight against keyloggers, but it is definitely one good way that anyone can use to protect themselves. The only troublesome thing is that you have to pre-register your login accounts with KYPS on a keylogger-free/spyware-free computer before you can use the service on a public computer. If you have the sudden urge to log into an account that you did not register with KYPS, you have to subject yourself to the same risk as others.

In addition, if you have plenty of accounts, the generated codes will form quite a huge list (imagine 200 codes for each account). If you mind carrying a huge list of codes everywhere you go, then KYPS might not be suitable for you.