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The key HKCU\Environment defines per user environment variables. Normally, all you see in this key are two values: TEMP and TMP. Both are REG_EXPAND_SZ values. You can add environment variables to Environment, however, and then use those from within batch files, REG_EXPAND_SZ values, and so on. Of course, you can also rely on the user interface to add environment variables. Click Start, Control Panel, Performance And Maintenance, System, and then click Environment Variables on the System Properties dialog box's Advanced tab. Per user environment variables are at the top of the dialog box, and per computer environment variables are at the bottom.

Microsoft Windows XP Professional is designed to be deployed to a wide variety of environments, from stand-alone home computers to enterprise networks with thousands of computers Because different environments have varying needs during deployment, Windows XP provides several different deployment methods Home users and small businesses need a quick, user-friendly installation procedure For these users, an attended installation is the most efficient Enterprises might need to deploy hundreds or thousands of computers at a time, while minimizing the cost of that deployment Computer manufacturers often build thousands of Windows XP Professional computers every day, with dozens of different hardware and software configurations For these users, Windows XP provides several different unattended installation technologies, including Remote Installation Services (RIS), the System Preparation Tool (Sysprepexe), and unattended answer files Upgrade scenarios are even more varied than new installation scenarios.

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Turning Off Fast User Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5

Medium When this level is set for a site, prompts are issued for all potentially unsafe content, and unsigned ActiveX controls cannot be downloaded. This level is available for all zones except the Restricted Sites zone.

As with new installations, many users need to upgrade many computers as efficiently as possible There are two additional levels of complexity, however Computers might have one of several different operating systems, including Windows NT Workstation 40, Windows 95, Windows 98, Windows Me, and Windows 2000 Professional Additionally, users have documents, applications, and customized settings that they need access to after the upgrade has been completed The vast majority of new installations and upgrades complete without problems However, when things do go wrong, you must understand how to resolve installation problems Your job is not done when you complete the installation or upgrade of Windows XP, either You must activate Windows XP, apply a service pack (or packs), and install critical updates to reduce the risk of security vulnerabilities or other problems.

In this practice, you create a performance-level baseline on a lab computer running Windows Vista, and then repeat the performance benchmark test after installing Windows 7 on the same computer.

This objective domain assesses your ability to prepare for and perform both attended (that is, manual) and unattended (automated) installations You must determine whether existing operating systems and applications will be upgraded or will be removed and replaced with new installations There are several methods for automated installations of Windows XP Professional, and you must be familiar with them all Your ability to deploy service packs, diagnose installation failures, and correct installation failures will also be assessed You will do a number of case studies that check your ability to identify the appropriate installation method when presented with detailed information about various computing environments You will also need to understand the difference between activation and registration of Windows XP Professional and how to complete the activation process through all available methods..

Configure, manage, and troubleshoot the Encrypting File System (EFS)

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public Service () { //Uncomment the following line if using designed components //InitializeComponent();

Control Panel and Device Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

OFF, NO POPULATION Specifies that the initial population of the full-text index does not occur after the full-text index is created. The NO POPULATION option is valid only with the OFF change tracking option.

Message classifications allow messages to be flagged for special handling. Special handling could mean that the message can be read only by certain users or might not be able to be sent to recipients outside the organization. Users who create a message using Outlook 2007 or Outlook Web Access have the option of assigning a classification to that message, as shown in Figure 6-14.