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System Restore Windows automatically captures system state before installing new applications or drivers . You can later use the System Restore tool to return to this system if you experience problems . Because System Restore is available from the System Recovery tools, you can use System Restore to repair problems that prevent Windows Vista or Windows 7 from booting . Startup Repair can prompt you to initiate a System Restore, so you might never need to access this tool directly . For more information about System Restore, read 16, Managing Disks and File Systems . System Image Recovery You use this tool to initiate a complete restore of the system hard disk . However, because any files saved since the last backup will be lost, you should use this only as a last resort . For information about backups and restores, see 16 . Windows Memory Diagnostic The Windows Memory Diagnostics tool performs an automated test of the reliability of your computer s memory . For more information, see 30, Troubleshooting Hardware, Driver, and Disk Issues . Command Prompt From the Command Prompt tool, you have access to many standard command-line tools . Some tools will not work properly, however, because Windows Vista is not currently running . For example, because WinRE does not include networking capabilities, network tools will not function correctly . However, several tools in WinRE are useful:

BCDEdit .exe for making changes to the BCD registry file Diskpart .exe for viewing and changing disk partitioning Format .exe for formatting partitions Chkdsk .exe for finding and resolving some disk problems (note that Chkdsk cannot add events to the event log when started from System Recovery tools) Notepad .exe for viewing log files or editing configuration files Bootsect .exe (available on the Windows 7 DVD in the \Boot\ folder) for updating the master boot code for hard disk partitions to switch between the Windows 7 Boot Manager and Ntldr, used by Windows XP and earlier versions of Windows Bootrec .exe for manually repairing disk problems if Startup Repair cannot fix them

The Search_SearchFolders collection sets the LookIn property of FileSearch to the C drive to ensure that it doesn t contain any directory references from previous FileSearch operations.

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Sometimes, Windows might start correctly but might take an unusually long time to do so . Such a problem can be difficult to troubleshoot because there s no straightforward way to monitor processes while Windows is starting . To help administrators identify the source of startup performance problems and to automatically fix some problems, Windows 7 includes Windows Boot Performance Diagnostics . You can use the Group Policy settings to manage Windows Boot Performance Diagnostics in an Active Directory Domain Services (AD DS) environment . In the Computer Configuration \Policies\Administrative Templates\System\Troubleshooting and Diagnostics\Windows Boot

Performance Diagnostics node, edit the Configure Scenario Execution Level policy . When this policy is enabled, you can choose from the following two settings:

Determining if a File Exists Using FileSearch There might be times when your procedure won t run successfully without a particular file. You can simply use a function to determine if that file exists. For example, the following function was written to verify whether a file and its path are valid. The function will return True if the file exists and False if it was not found.

Detection And Troubleshooting Only Windows Boot Performance Diagnostics will identify startup performance problems and will add an event to the event log, allowing administrators to detect the problems and manually troubleshoot them . Windows Boot Performance Diagnostics will not attempt to fix the problems, however . Detection, Troubleshooting, And Resolution Windows Boot Performance Diagnostics will identify startup performance problems and automatically take steps to attempt to alleviate the problems .

If you disable the setting, Windows Boot Performance Diagnostics will neither identify nor attempt to resolve startup performance problems . For Windows Boot Performance Diagnostics to function, the Diagnostic Policy Service must be running . Settings for Windows Shutdown Performance Diagnostics, which function similarly to the Windows Boot Performance Diagnostics, are located in the Computer Configuration\Policies \Administrative Templates\System\Troubleshooting And Diagnostics\Windows Shutdown Performance Diagnostics node .

To diagnose and correct a startup problem, you need to understand what occurs during startup . Figure 29-2 provides a high-level overview of the different paths startup can take .

Function FileExists(path, fname) As Boolean With Application.FileSearch .NewSearch .filename = fname .LookIn = path .Execute If .FoundFiles.Count = 1 Then FileExists = True Else FileExists = False End If End With End Function

Windows Legacy OS Loader (NTLDR)

The normal startup sequence for Windows 7 is:

The FileDialog object allows you to display the Open and Save As dialog boxes using VBA code. The GetOpenFileName and GetSaveAsFileName methods of the Application object achieve similar results and can be used for backward compatibility. However, the FileDialog object is available to all Office applications and is a familiar interface to the users.

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Power-on self test (POST) phase . Initial startup phase . Windows Boot Manager phase . Windows Boot Loader phase . Kernel loading phase . Logon phase .

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