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Showing posts with label Operating System. Show all posts
Showing posts with label Operating System. Show all posts

Monday, August 9, 2010

Windows 7 Experience Index

The Windows 7 Experience Index is visible to a user when they right-click on the Computer and then from the given options, select Properties. The Windows 7 Experience Index will be located on the Control Panel or the System applet.

There are a lot of times when a user uses this same approach and after clicking on the Windows 7 Experience Index link, it is automated that the user goes to the Performance Information and Tools page. There are times when Windows 7 Experience Index details cannot be found making it impossible for the user to view or update the scores. This article will focus on this issue and the discussion will be based on the various steps and manuals to resolve this issue. It is a generic problem.

This problem in Windows 7 Experience Index takes place if a policy is set which takes out the access to the Performance Information and Tools page. A user is usually the administrator of the system, and one will have to follow the method given to resolve the issue of the Windows 7 Experience Index missing files. These steps are covered under the various Windows 7 dos and donts. So each step should be given due attention.

Method: The first method is deployed by Using the Group Policy Editor
Click Start, type GPEDIT.MSC and press ENTER. This action will open up the Group Policy Editor.

Navigate to the following branch:
Computer Configuration | Administrative Templates | System | Performance Control Panel
Double-click Turn off access to the performance center core section
Set it to Not configured

If it has been already set to Not Configured, set it to Enabled and click Apply. Then revert back the setting to Not Configured. This resets the registry based policy if set already.

Repeat the steps in this branch as well:
User Configuration | Administrative Templates | System | Performance Control Panel
Exit the Group Policy Editor.

This method should enable resolving the issue of the Windows 7 experience index missing files. The steps should be followed with precision and accuracy.

Sunday, June 27, 2010

What and How Basics of Windows Firewall

windows 7 firewallWhat is a Firewall?
Firewall is a software or hardware which helps users in detecting and keeping all the malwares away from PC. Firewall is the most effective software that helps you in protecting your PC. It is also important to turn on your firewall prior to connecting to the Internet.Windows_Firewall

Need of Firewall –
Today computer environment has become pretty unreceptive. Hence, it has become very important to get a complete protection for your computer security otherwise hackers can get access to your PC as well as your valuable data. Apart from hackers, your computer can also get affected by Virus and other malwares. Firewall is used as a preventive measure to stay away from all such malicious items.

How does Windows Firewall work?
Windows Firewall monitors every-network traffic which is enabled. Firewall keeps track of every communication that is originated from your PC and also it prevents your PC from all the unsolicited items.

If needed, firewall dynamically opens ports and allows your computer to receive traffic that you have specifically requested, such as a Web page for which you have clicked the address.

Windows Firewall also helps user in blocking of unidentified traffic that can reach to your PC. For special uses, such as networking, hosting online games, or hosting your own Web server, you can select ports which you want to leave open. This allows others to make connections to your computer, but it can also reduce security.

It is always suggested that a firewall product must be well aware of windows firewall basics and use procedure.

Nonetheless, configuration of firewall creates issues in browsing of many websites, such as, gaming sites, web or other server. If you are also facing such issues, these problems can be well-treated with help of expert computer technicians.

(Note - Apart from handling the issues of Windows Firewall, technical support experts also help you configuration of complete PC protection system.)

Benefits

* Windows 7 firewall is considered of high importance for big corporate houses. They serve as a core of secure networking environment and keep hackers staying away from your computer and crucial information.

* It offers a secure web browsing environment and reduces of your worries any data theft. It also diminishes the percentage on internal threats.

* If you want an extensive reach on internet. You can customize your firewall settings. This would help you in blocking only unwanted IP address but rest would be functioning nice.

* You can decide upon the protocols to be included in your firewall's filters. You can customize it for some of the commonly used protocols, which are: IP, HTTP, TCP, FTP, SMTP etc.

* Your firewall can be to customized to allow or block any port number

How to configure Windows Firewall on Your PC

* Click the Windows icon & select Control Panel

* Click on System and Security.

* Click on Windows Firewall

* If a green check mark is visible, you are running Windows Firewall.

Types of Firewall
There are various types of Firewall which can be configured on your PC. These are respectably -


* Packet filtering firewall – this firewall is used to examine the information available in the header of message packet.

* Application-level gateways – This firewall work on the application layer of the protocol and it works in a pretty intelligent manner than the packet filtering firewall.

* Circuit-level gateways

* Hybrid firewall

Monday, April 5, 2010

Operating Systems For Computers

Linux, Windows, Sun Solaris and Macintosh are some of the popular computer operating systems. But do you know who have designed their own operating system and use it on their local machines? So, what is all this fuss about computer operating systems and how to decide which one to use? Before we start taking about operating systems for computers, let us try to understand, what a computer operating system is.

A computer operating system is nothing but system software because of which the software and hardware in a computer can communicate with each other. In short, it is what takes life to a computer. Simply it is the computer operating system, on which you run all your applications. If you want to run certain software in your computer, it needs to be compatible with the operating system that is running in your computer. So much for the purpose of creating you aware of what is a computer operating system. Now that you have some good idea about what is a computer operating system, let us try to understand, how different types of operating systems can be used.

Types of Computer Operating System

Computer operating systems can be broadly classified into many categories. One thing kept in mind is that one particular operating system can fall into more than one category. The classification is based on the features that operating systems have.

Multithreading Operating Systems
These are the operating systems that allow to use different types of the same software to run at the same time. Operating systems like Windows XP, 9X, ME, Vista, windows 7 and Linux are examples of this type of operating system.

Multitasking Operating System
If your computer operating system allows you to run more than one application software at the same time, than it can be classified into Multitasking operating system. The same operating systems that have been mentioned above can be classified as examples of this type of operating system.

GUI Operating System
GUI means graphical user interface. This type of operating systems like Windows 98, XP, ME, Vista, 7 and Linux, which allow users to navigate graphic representation of every process or application are classified into this type of operating system.

CUI Operating System
This type of the computer operating systems, where you need to learn the commands for working with that particular operating system . MS DOS is one of the most used operating system. There is a particular command for each process and to bring in variation to the command, you have switches.

Multi-user Operating System
Multi-user operating systems which allow more than one user to log in to the computer system at the same time and use it; it can be classified as multi-user operating system. Linux is the most common example of this type of operating system, which allows six users to login at the same time and user used the this operating system very easily.
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