1 Module 7 Configuring the Windows NT Environment

2  Overview Registry Overview Control Panel Hardware Settings Control Panel Software Settings System Policy Editor Registry Editor

3  Registry Overview Components That Use the Registry The Hierarchical Structure of the Registry Registry Subtrees HKEY_LOCAL_MACHINE

4 Components That Use the Registry RegistryEditOptionsWindowHelpTreeViewSecurity Registry Editor [HKEY_LOCAL_MACHINE on Local Machine] Clone Hardware SAM Security Software System HKEY_LOCAL_MACHINE Registry Windows NT Kernel (NTOSKRNL) Windows NT Kernel (NTOSKRNL) Device Drivers Device Drivers User Profiles Hardware Profiles Setup Programs Setup Programs Hardware Data Hardware Data

5 The Hierarchical Structure of the Registry RegistryEditOptionsWindowHelpTreeViewSecurity Registry Editor (HKEY_LOCAL_MACHINE on Local Machine) HARDWARE SAM SECURITY SOFTWARE HKEY_LOCAL_MACHINE Classes Description Microsoft AudioCompressionMe Browser CurrentVersion NetRules Cryptography DirectPlay Internet Explorer Lanman Server Lanman Workstation Nbf Description: REG_SZ: Microsoft Network Browser Service InstallDate: REG_DWORD: 0x MajorVersion: REG_DWORD: 0x4 MinorVersion: REG_DWORD: 0 RefCount: REG_DWORD: 0 ServiceName: REG_SZ: Browser SoftwareType: REG_SZ: service Title: REG_SZ: Computer Browser

6 Registry Subtrees Registry Editor RegistryEditOptionsWindowHelpTreeViewSecurity HKEY_LOCAL_MACHINE on local machine HKEY_USERS on local machine HKEY_CURRENT_CONFIG on local machine HKEY_CLASSES_ROOT on local machine HKEY_CURRENT_USER on local machine AppEvents Console Control Panel Environment Keyboard Layout Software HKEY_CURRENT_ USER Microsoft Clock Command Processor File Manager Internet Explorer Mail Multimedia CompletionChar: REG_DWORD: 0 DefaultColor: REG_DWORD: 0 EnableExtensions: REG_DWORD: 0x1

7 HKEY_LOCAL_MACHINE RegistryEditOptionsWindowHelpTreeViewSecurity Registry Editor [HKEY_LOCAL_MACHINE on Local Machine] Hardware SAM Security Software System HKEY_LOCAL_MACHINE

8  Control Panel Hardware Settings Managing Hardware Profiles Configuring the Display

9 Managing Hardware Profiles At startup, if Windows NT cannot determine which hardware profile to use, it should: Wait indefinitely for user selection Wait for user selection for seconds, then select the highest-order preference. Available Hardware Profiles: Multiple Hardware Profiles Hardware Profiles provide a way to create hardware configurations that you can choose from at startup. Off the Network Wired to the LAN (Current) GeneralPerformanceEnvironment User Profiles Hardware Profiles Startup/Shutdown. Copy OKCancelApply Properties Rename...Delete System Properties ?

10 Configuring the Display List All Modes... Apply Display Type... OKCancel Large Fonts 256 Colors LessMore 1024 by 768 pixels Display Properties Use hardware default setting Color Palette Font Size Desktop Area Refresh Frequency llll Test BackgroundScreen Saver Appearance Plus!Settings ?

11  Control Panel Software Settings Changing Startup and Shutdown Settings Configuring Virtual Memory Setting Environment Variables Adding and Removing Windows NT Components

12 Changing Startup and Shutdown Settings When a STOP error occurs, do the following: Write an event to the system log Send an administrative alert Write debugging information to: %SystemRoot%\MEMORY>DMP Automatically reboot Overwrite any existing file Startup: General PerformanceEnvironment User Profiles Hardware Profiles Startup/Shutdown System Startup Recovery System Properties Apply OKCancel ‘Windows NT Workstation Version 4.00” Show list for 30 seconds ?

13 Configuring Virtual Memory Virtual Memory OK Cancel Help Drive [Volume Label] Paging File Size (MB) Drive: C Space Available: 160 MB Minimum Allowed: 2MB Recommended: 43MB Currently Allocated: 43MB Paging File Size for Selected Drive Total Paging File Size for All Drives Current Registry Size: 2MB Registry Size C: Maximum Size (MB): 93 Initial Size (MB): 43 Maximum Registry Size (MB): 8 Set

14 Setting Environment Variables User Variables for Administrators: ComSpec GeneralPerformance Environment User Profiles Hardware ProfilesStartup/Shutdown OKCancelApply System Properties ? System Variables: C:\WINNT\system32\cmd.exe 1 Windows_NT C:\WINNT\System32\os2\dll; C:\WINNT\System32;C:\WINNT TEMP C:\TEMP TMP C:\TEMP NUMBER_OF_PR... OS Os2LibPath Path VariableValue Variable: ComSpec Value:%SystemRoot%\system32\cmd.exe SetDelete VariableValue

15 Adding and Removing Windows NT Components To add or remove means that only what’s included i Components: Space required: Space available Includes option mouse behavior impairments. Description Accessi Accesso Commun Games Microso Add/Remove Programs Properties ? Install/Uninstall The following software can be automatically removed by Windows. To remove a program or to modify its installed components, select it from the list and click Add/Remove. To install a new program from a floppy disk or CD-ROM drive, click Install. Install/Uninstall Windows NT Setup Microsoft Exchange Microsoft Word 7.0 WinZip OKCancelApply Add/Remove... Add/Remove Programs Properties ? Install...

16  System Policy Editor Introducing System Policy Editor Registry Mode vs. Policy File Mode Changing Registry Settings Using System Policy Editor to Secure a Computer

17 Introducing System Policy Editor FileEditViewHelp System Policy Editor - Untitled Options Default UserDefault Computer

18 Registry Mode vs. Policy File Mode FileEditViewHelp System Policy Editor - Local Registry Options Local UserLocal Computer

19 Changing Registry Settings FileEditViewHelp System Policy Editor - Local Registry Options Policies Remove Run command from Start menu Remove folders from Settings on Start menu Remove Taskbar from Settings on Start menu Remove Find command from Start menu Wallpaper Color scheme Shell Restrictions Desktop Restrict display Display Control Panel Default User Default User Properties OK Cancel

20 Using System Policy Editor to Secure a Computer User name: HelpCancel Shut Down Logon Information Enter a user name and password that is valid for this system. OK Password: Domain: User1 WORKGROUP User name: HelpCancel Shut Down Logon Information Enter a user name and password that is valid for this system. OK Password: Domain: WORKGROUP Set Sytem Policy Editor Parameter to Prevent Displaying Last Logon Name Set Sytem Policy Editor Parameter to Prevent Displaying Last Logon Name

21  Registry Editor Using Registry Editor Registry Editor Commands

22 Using Registry Editor

23 Registry Editor Commands Registry Editor Find Key Command Searches the Registry for a specific key Registry Editor Find Key Command Searches the Registry for a specific key Find what: Match whole word only Match case UpUp Down Direction. Help Cancel Find Next Find ?

24 Review Registry Overview Using Control Panel to Configure the Computer Control Panel Hardware Settings Control Panel Software Settings System Policy Editor Registry Editor