How to protect your computer from VIRUS

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Protect PC from VIRUS 

With millions of computer users browsing the web at any given time, there are plenty of targets for malicious coders. While computer experts don’t always know why coders choose to build harmful computer programs, the fact is that it happens all the time. Computer viruses can steal personal information, interfere with normal operations, attract spam and even shut down your computer’s hard drive. Protecting your computer is critical for browsing success.

Start With the Basics
Most computer systems come with security features already in place. For example, the Windows operating system is packaged with Microsoft Windows Security Center. When you first open, boot up and register a new computer, you should make sure that this program is functioning. It will give basic protection against spyware, viruses and malware. In addition, a basic firewall is built into this program, providing additional protection and stops for potentially harmful programs. Upon activation, don’t be surprised if your security system needs immediate updating. Software that protects your computer needs regular and consistent updating to stay useful. Viruses are constantly being generated and the several-month lag between when your computer was made and when you first started using it can mean that the database the security system is loaded with is severely out-of-date.

Some windows short cut keys

Shortcut Keys 3.x 9x ME NT 2K XP Vista 7 Description

Alt + Tab X X X X X X X X Switch between open applications.

Alt + Shift + Tab X X X X X X X X Switch backwards between open applications.

Alt + double-click X X X X X X X Display the properties of the object you double-click on. For example, doing this on a file would display its properties.

Ctrl + Tab X X X X X X X X Switches between program groups or document windows in applications that support this feature.

Ctrl + Shift + Tab X X X X X X X X Same as above but backwards.

Alt + Print Screen X X X X X X X X Create a screen shot only for the program you are currently in.

Ctrl + Print Screen   X X X X Creates a screen shot of the entire screen

Ctrl + Alt + Del X X X X X X X X Reboot the computer and brings up the Windows task manager.

Ctrl + Shift + Esc     X X X X Immediately bring up the Windows task manager.

Ctrl + Esc X X X X X X X X Bring up the Windows Start menu. In Windows 3.x this would bring up the Task Manager.

Alt + Esc X X X X X X X Switch Between open applications on taskbar.

F1 X X X X X X X X Activates help for current open application.

F2 X X X X X X X X Renames selected Icon.

F3 X X X X X X X Starts find from desktop.

F4 X X X X X X X Opens the drive selection when browsing.

F5 X X X X X X X Refresh Contents to where you were on the page.

Ctrl + F5   X X Refreshes page to the beginning of the page.

F10 X X X X X X X X Activates menu bar.

Shift + F10 X X X X X X X Simulates right-click on selected item.

F4 X X X X X X X Select a different location to browse in the Windows Explorer toolbar.

Alt + F4 X X X X X X X X Closes Current open program.

Ctrl + F4 X X X X X X X X Closes Window in Program.

F6 X X X X X X X Move cursor to different Windows Explorer pane.

Alt + Space bar X X X X X X X X Drops down the window control menu.

Ctrl + (the '+' key on the keypad) X X X X X X Automatically adjust the widths of all the columns in Windows explorer

Alt + Enter X X X X X X X Opens properties window of selected icon or program.

Alt + Space bar X X X X X X X Open the control menu for the current window open.

Shift + Del X X X X X X X Delete programs/files without throwing them into the recycle bin.

Holding Shift X X X X X X X X Boot Safe Mode or by pass system files as the computer is booting.

Holding Shift X X X X X X X When putting in an audio CD, will prevent CD Player from playing.

Enter X X X X X X X X Activates the highlighted program.

Alt + Down arrow X X X X X X X Display all available options on drop down menu.

* (on the keypad) X X X X X X X Expands all folders on the currently selected folder or drive in Windows Explorer.

+ (on the keypad) X X X X X X X Expands only the currently selected folder in Windows Explorer.

- (on the keypad) X X X X X X X Collapses the currently selected folder in Windows Explorer.

Windows key keyboard shortcuts

Below is a listing of Windows keys that can be used on computers running a Microsoft Windows operating system and using a keyboard with a Windows key. In the below list of shortcuts, the Windows key is represented by "WINKEY".

Shortcut Keys Description

WINKEY Pressing the Windows key alone will open Start.

WINKEY + F1 Opens the Microsoft Windows help and support center.

WINKEY + F3 Opens the Advanced find window in Microsoft Outlook.

WINKEY + D Brings the desktop to the top of all other windows.

WINKEY + M Minimizes all windows.

WINKEY + SHIFT + M Undo the minimize done by WINKEY + M and WINKEY + D.

WINKEY + E Open Microsoft Explorer.

WINKEY + Tab Cycle through open programs through the taskbar.

WINKEY + F Display the Windows Search or Find feature.

WINKEY + CTRL + F Display the search for computers window.

WINKEY + R Open the run window.

WINKEY + Pause / Break key Open the System Properties window.

WINKEY + U Open Utility Manager.

WINKEY + L Lock the computer and switch users if needed (Windows XP and above only).

Computer Glossary

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A
Application is a term for a program installed and used on a computer system. Examples are: Web Browsers, word processors, and chat programs. Windows file extension is .exe. Macs use the .app extension.
Applet this is a java application embedded into a website. The applet cannot use resources from the local machine.
B
BIOS stands for "Basic Input Output System." This program is found on all Windows based machines, and is used to start the computer up. BIOS is not used in Mac systems.
BCC means "blind carbon copy." When sending an email to more than one person, the addresses in the BCC box will not be shown to all recipients. If the address are provided in the CC field, all the addresses are visible. http://www.premsansar.com
C
Cache pronounced "cash," this serves as a storage of short term information in use by the computer. There are memory caches, Internet caches, and other types of caches all used to store this data.
Codec is short for "encoder-decoder." Different video and audio formats have different compression ratios so codecs are necessary to ensure these files play on the computer.
D
DOS means disc operating system. It was the first operating system used by IBM computers. Two different forms of DOS were sold, PC-DOS, and MS-DOS. MS-DOS is the one Microsoft bought rights to.
De-fragment is a process that reorganizes the hard drive to help it run more efficiently.
E
Ethernet is a form of connectivity that appears like a slightly larger telephone jack. It is used to connect one computer to another, connect to a local area network, or connect to high speed Internet modems.
Emoticon(s) are text based smiley faces and other objects used in chat and email to express emotion. Examples are :) for happy, and :'( for crying.
F
Firewire is a form of connectivity similar to USB, meant to connect peripherals such as MP3 Players and digital cameras to the computer. It operates around 30 times faster than a USB 1.1 connection.
FSB is an acronym for front side bus. It is sometimes referred to as the "system bus." The FSB is what connects the RAM and other important computer components to the motherboard.

Reasons behind Slow Computer

Slow Computer

One of the most common and irritating problem of computer users is when their computer is running slow, it is the same computer that used to work like a charm one or two months before. So here are the some reasons behind slow computer. http://www.premsansar.com

• Not enough hard drive space
• left over programs and bad files
• Data Corruption
• Missing Windows updates or outdated drivers
• Computer is overheating
• Corrupt OS
• Bad Hardware  http://www.premsansar.com