Showing posts with label computer. Show all posts
Showing posts with label computer. Show all posts

Friday, July 17, 2009

How to make a Simple Shutdown Virus?

In this tutorial you will learn how to make a virus joke to your friends and shut down their computer. Replace one of their used icons on the desktop with a fake one. And when they try to open it, their computer will close.
Let's Start :

1. Right click on the desktop and go to New -> Create Shortcut.

2.
Type in the windows that appears:
shutdown -s -t 60 -c "Virus Detection. Computer is shutting down."
Instead of 60 you can put what value you want. It represents the time in seconds. And also between quotes you can put what message you desire.

3. Click Next and type Internet Explorer. You can write whatever you want.

4. You will have a program like this on your desktop.

5. We need to change its icon to look like Internet Explorer. Right click on it and chooseProperties.

6. Go to Shortcut ->Change Icon.

7. You can find the icon in the ones available or go to C:/Program Files/Internet Explorer and select the icon from there.

8.
After the icon is selected press Open.

9. The 'virus' will look like Internet Explorer.

10. And when you open it the computer will be closed in 60 seconds or whatever value you chosed.

11.
The only way to stop the computer from shutting down is to go to Start->Run and type "shutdown -a", and press "Enter" Remember that this is just for educational purposes only and you should not harm computers and their functionality.

Fool your Friend now!

Thursday, July 9, 2009

How to Connect Two Computers Using a LAN Cable

While most home networking is done through a router with multiple Ethernet cables, you may not need to purchase all that equipment if you only have two computers that need to transfer files to and from each other. You can network two computers directly together using a single local area network (LAN) cable known as a crossover cable.

Step 1. Measure the distance between the two computers and write down the length. Purchase an Ethernet crossover cable that is slightly longer than the measured length

Step 2. Power off both computers completely. Connect one end of the crossover cable to the Ethernet network port on the back of one of the computers. Run the cable across to the other computer, and connect the other end into the computer's Ethernet port.

Step 3. Turn both of the computers back on, and wait for their operating systems to finish loading. Click on the "Start" button on either of the computers and then choose the "Control Panel" option. Scroll down through the list of options, and click on the icon labeled as "System."

Step 4. Wait for a new window to pop up asking if you want to proceed, and click on the "Continue" button. Scroll down to the "Computer Name" heading, and write down the entry listed under "Workgroup."

Step 5. Go to the second computer, and access the System menu in the Control Panel. Scroll down to the Computer Name heading, and click on the "Change" button. Type in the work group name you wrote down earlier in the "Workgroup" text box. Click on the "Apply" button.

Step 6. Restart the computer to save the workgroup change. Navigate back to the Control Panel, and click on the "Network and Sharing Center" icon. Choose the "View Computers and Devices" option to gain access to the other computer's files and folders.

Saturday, July 4, 2009

Three Ways To Increase Computer Speed Today

Computer running slow? Have you been wondering how can I speed up my computer? I don’t blame you. There is no reason to settle for a slow computer when there are many options to increase computer speed. Most importantly this can be done without spending hundreds of dollars on upgrades or new equipment.
Few people are aware of this however. They forget that the computer is a machine. And like any machine it needs maintenance in order to continually run faster. When is the last time you performed some speed tweaks to make your computer run faster?
Three ways to speed up my computer

1. Eliminate unnecessary startup programs. Whenever you install a new computer it will want to launch at startup, whether it asks for permission or not. These programs will do two things. First they will cause a slow startup time. Second they eat up valuable RAM causing your computer to run sluggishly. To increase computer speed it would be wise to get rid of them. You can perform this task manually or use a program to identify unneeded startup programs for you.

2. Run your disk defragmenter. Windows recommends running a defrag once a month to maintain overall computer speed. When is the last time you ran one? Either manually run the disk defragger or download a program that you can use to automatically schedule it for specific times.

3. Clean up the Windows registry. Whenever someone asks “how can I speed up my computer”, I ask them when they last cleaned up the computers registry. The registry is the area that contains commands to run just about everything on your computer. When it is filled with useless, duplicate, and corrupted files it will slow down your computer considerably. For this task you must use a program as manually registry repair is nearly impossible.
These are three ways to increase computer speed. While they can be very difficult to perform manually, there is software available that can execute these three tasks for you quite easily. Stop asking yourself – how can I speed up my computer? Simply scan your computer below for a free diagnosis.
About the Author:
Tired of your sluggish computer? Do you wish it ran more like the hare and less like the tortoise? Did you know you can get your computer running like new with a simple free scan? Speed up your computer with the best registry cleaner on the market.

Tuesday, June 30, 2009

Best And Fast Way To Lock Your Computer

Lock My PC™ is an easy in use, powerful and compact tool to lock your computer from unauthorized use. When you leave your computer unattended, the program disables the hot keys (including Ctrl+Alt+Del), mouse, locks CD/DVD ROM doors and displays a lock screen. Nobody can access your system without providing the correct unlock password.


Unlike another similar computer lock software that cannot lock Ctrl+Alt+Del on a computer running Windows XP, our Lock My PC runs own keyboard driver to block such key combinations. Moreover, bulletproof startup lock guarantee that when your computer locaked at startup, this lock cannot be bypassed even in safe mode!

Why Lock My PC ?
You don't like snoopers. They are always prying into your e-mail messages, programs, data, files, etc. Lock My PCallows you to lock your computer with a password while you leave it unattended. You can lock your computer manually, with a menu or hotkey, or set up auto lock when your computer is idle.

Features and benefits:

  • Quick and safe computer lock by hot key, or mouse click
  • Autolock when computer is idle
  • Correct Ctrl+Alt+Del lock
  • Bulletproof startup lock (couldn't be bypassed in safe mode)
  • Different installation mode - setup for home or corporate use
  • CD/DVD-ROM doors lock
  • Multi-user support
  • Multimonitor support
  • Auto turnoff when computer is locked for a long time
  • Blind password option
  • Stealth mode
  • Windows XP x64 compatibility
  • Custom lock screens
  • Cycling lock screen images
  • Screen saving effects
  • Lock screen transparency - you can view movies under the locked screen
  • Password protected settings, quit and uninstall
  • Command line options
  • and many more ...

Difference from standard Windows XP computer lockfeature
A lot of users believe that Lock My PC (as well as any other third party computer lock software) is useless because Windows XP has integrated computer lockfeature. Well, indeed, you can simply press Win+L onWindows XP computer keyboard and your screen will be safely locked. What advantages Lock My PC has over Windows computer lock?

First of all, when your computer is locked by Windows Lock feature, anyone who has Windows Administrative privileges can unlock your computer. Such unlock will force to close your session (all unsaved changes will be lost). If Welcome screen option is enabled on your computer (the default settings for non-domain computer), Win+L doesn't lock the computer at all - it temporary switches the user off and displays the welcome screen - if you share your computer with others, they can logon with their usernames and use your computer. Moreover, if you share your account with other users (it's common for home PC), Windows XP lock feature is useless at all - your folks will unlock your computer without any problem.

Another benefits of Lock My PC in comare with Windows lock feature:
  • Custom lock screens and transparent lock screen options - your computer can be used as a presentation machine - the screen displays pictures or video, but nobody can touch your computer;
  • Secure Lock before Windows welcome/logon screen;
  • Displaying unsuccesfull unlock attempts - you will be notified if anyone tried to unlock your computer;
  • If Lock My PC is used in muilti-user mode, a supervisor can unlock the computer without closing user session;
  • You can lock CD/DVD ROM doors along with thedesktop, keyboard and mouse - this can prevent CD media from being stolen while you are out;
  • Command line support allows you to use Lock My PCin Internet kiosks.

Safe and secure
Lock My PC provides reliable locking mechanism that impossible to bypass:
Keyboard driver installed with Lock My PC blocks different key combinations like Ctrl+Alt+Del, Alt+Tab, Ctrl+Esc and many others.
Booletproof startup lock ("Always lock at startup" option) displays password prompt box before Windows logon/welcome screen and (unlikle the most of desktop locking software) bannot be bypassed in Windows safe mode.

Easy to use
As soon as the installation completed, double click on the Lock My PC tray icon to lock the computer.
Right click on the tray icon to get access to the program settings. All settings are groupped by cathegoriies.

Autolock computer after certain time of inactivity
You can set up Lock My PC to lock your desktop automatically if the computer is idle during a certain period of time. Moreover you can set up Lock My PC to switch the computer off (Hibernate, Standby etc.) if your computer was locked during a certain period of time.

Stealth mode
Lock My PC can work in stealth mode. Stealth mode is a state when the program is running on your computer but does not show any sign of its presence in memory. To activate stealth mode, enable options "Do not show tray icon at startup" and "Hide Lock My PC from Task Manager".

Two installation modes
Lock My PC can be used both in single-user and multi-user environment. During the installation process, you will instruct Setup wehter to install Lock My PC in single-user mode or in multi-user mode.
In single-user mode, Setup will create Lock My PCshortcuts only for you. Locked computer can be unlocked only with your password. Some advanced options for corporate use will be blocked. This mode is ideal for home use.
In multi-user mode, Setup will create Lock My PCshortcuts for all user accounts. Each Lock My PC user will have their own password. The user who installed Lock My PC will be Lock My PC Administrator and his/her password - the administator's password. This mode is ideal for corporate use.

Custom Lock Screens
Lock My PC comes with a set of different lock screens. Lock screens are located in LockScreens subfolder of LockMy PC program folder.
You can create your own Lock Screen pictures and use them with Lock My PC. Your computer will look cool and unique when it is locked. You can use GIF, JPEG, BMP and animated GIF images as lock screens. Lock Screen transparency level option will allow you to vary the transparency from fully opaque to fully transparent. The latter allows you to lock keyboard and mouse only and may be helpful when you are watching videos or running presentations on your PC.

By the way, you can get this nice tool by downloading at
Here.

Monday, June 29, 2009

Maintain Your PC

If you've ever fried a CPU because you didn't clean your fan, lost a decade of your digital life to a hard drive crash, or spent four hours trying to remove a nasty virus, you learned a valuable lesson about the need to maintain your computer.

Medical experts remind us that "prevention is the best medicine" so as your personal computer support expert, I'm going to strongly advise that you apply the same logic to your computer!

These resources will help you keep your computer running in tip-top shape for as long as you choose to own it.

Backup Your Data

The most important thing you can do as a computer owner is to consistently and reliably back up the data stored on your hard drive. Hardware used to be the most valuable part of a computer but those bits and bytes are now the real investment.

You've spent huge amounts of money on software and digital music and video, and countless hours authoring documents and organizing your digital files. If you don't regularly backup this information, a serious computer problem could leave you with nothing but a huge feeling of regret.

Now that I've scared you a bit, use these resources to keep your data safe!

Update! Update! Update!

Keeping the software on your computer updated is no longer an optional part of computer ownership. Viruses, worms, junk mail, security breaches, hardware incompatibilities, and software conflicts are all now part of your daily digital life.

Updating your computer with the latest patches, fixes, and device drivers really can keep these annoyances at bay. Updates are freely available on the Internet for just about every antivirus program, email client, operating system, and piece of hardware you could possibly own.

These resources can help you locate these updates and keep your computer out of harm's way.

Keep Your Computer Clean

We all know that most things run a little better when they're clean. Water flows easier when your plumbing is clean, your car's engine runs better if you've been taking care of it, and your dryer does more in less time when you clean out the lint.

Your computer is no different. Keeping your files and folders tidy in your virtual world and clearing the dust and grime that builds up inside and outside your computer all play a part in keeping it running smooth day in and day out.

Tuesday, June 23, 2009

Host Your Own Website On Your Own PC

Here are the steps to follow to set up a website hosted entirely on your own Windows PC. First I'll present the general steps, then I'll break down the details for you:

1. Make sure you have cable modem, DSL or another high-speed connection. A dialup telephone modem is NOT good enough.

2. Get a DNS hostname for your home Internet connection.

3. Get a static local IP address for your computer within your home network.

4. Configure your router to correctly forward connections on port 80 (the HTTP port) to your web server. Even if you think you don't have a router, you probably do— many popular cable and DSL modems include wifi or wired Ethernet jacks for multiple computers, which means they contain a built-in router. If your ISP blocks port 80, choose an alternative port number and forward that (or get a better ISP that welcomes websites at home, like Speakeasy.Net).

5. Configure Windows Firewall to allow your web server to communicate on port 80.

6. Get Apache, a free, high-quality web server program. If you have Windows XP Professional, you also have the option of Microsoft Internet Information Server (IIS), which comes standard with Windows XP Professional. But that option only allows you to host one site. I recommend Apache.

7. Test your web server from your own computer.

8. Replace the default home page with your own web page. Now the site is your own!

9. Test your web server from a computer that is NOT on your home network to make sure you followed all of the steps correctly.

Upload speed, not download speed, is the most important feature for hosting websites at home.

The main limitation will be your upload speed (uplink speed). Most DSL or cable modem connections have an upload speed between 128kbps (128,000 bits per second) and 384kbps (384,000 bits per second).

So how long does it take to load your home page? Add up the size of your home page (in bytes), the sizes of all of the images on that page, and the size of any Flash movies (.swf files) or CSS style sheets (.css files) referenced by that page. Now multiply by 8 and you'll know how many bits make up your home page. Divide that by your upload speed and you'll have a rough idea how long it takes to load your home page under ideal conditions. There will also be latency delays slowing things down, and multiple users will of course slow things down and make it take longer. There is no fixed limit on the number of users who can access your home-based website at the same time - things just slow down.

Step Seven: Test Your Website From Your Own Computer

Is the website working? Let's find out! The first test is to access your site from your own computer. On the same computer that is running the web server software, access the URL http://localhost/. You should see an example home page provided with your Apache or IIS web server software. If not, review the appropriate quick start guide above and figure out which step you skipped! If you received errors during installation, you need to resolve them before your website will work.

Step Eight: Make Your Own Home Page

You have a web server, but right now the "content" on the site is just the default home page that came with the server software. Time to fix that!

All you have to do is move your own web pages to the appropriate folder. If you followed the Apache quick-start guide, your web pages belong in this folder:

C:Program FilesApache Grouphtdocs

If you followed the IIS quick-start guide, your web pages belong here:

C:Inetpubwwwroot

First, remove the files that are already in those folders. It's not smart to leave "default" files lying around. What if a security problem was found with one of these common files? Then your website would be vulnerable.

Next, copy your own web pages and images into the folder. The "home page" of your site should be called index.html (not index.htm). Both Apache and IIS are smart enough to know that when a user visits http://yourname.is-a-geek.com/, they should act as if the user asked for http://yourname.is-a-geek.com/index.html and do the right thing.

Step Nine: Test Your Website From The Outside World

We did a lot of work here to give our computer a hostname on the Internet and forward web traffic through the router and firewall. Did we do it right? Only one way to be sure! Access your website from a computer that is not on your home Internet connection, or have a friend try it. For example, if you registered the name myname.is-a-geek.com with DynDNS, your website's address is http://myname.is-a-geek.com/. Try that address from a computer outside your home and see what happens!
If it works... great! If not, you probably made a mistake in dynamic DNS, port forwarding, firewall configuration or local static IP configuration.