18 Installing Dell™ OpenManage™ Client Instrumentation
NOTE: You cannot upgrade from OMCI 6.x to OMCI 7.6 using the OMCI 7.6 installer
if the target system has OMCI 6.x on it. Ensure that you uninstall OMCI 6.x before
installing OMCI 7.6. OMCI version 7.2 and later can be installed only on Dell systems
running the Windows operating systems listed in the "Supported Operating
Systems" section.
NOTE: You can upgrade to OMCI 7.6 from OMCI versions 7.4 A00, 7.5 A00, 7.5 A01,
7.5 A02, and 7.5 A03. If the upgrade path includes an operating system upgrade to
Windows Vista, then you must upgrade OMCI to 7.6 first, and then upgrade the
operating system to Windows Vista; vice versa is not supported.
NOTE: Separate installation programs exist for Windows 32- and 64-bit Edition
operating systems, and are available for download from the Dell Support website at
support.dell.com.
User Account Control in Windows Vista
In previous versions of Windows, user accounts were often members of the
local Administrators group and had administrator privileges. Members of the
local Administrators group could install, update, and run software since an
administrator account had system-wide access. When a user was added to the
local Administrators group, that user was automatically granted every
Windows privilege because administrator privileges provide access to all
operating system resources. User accounts with administrator privileges posed
a security risk by providing access to operating system resources that can be
exploited by malicious software (or malware).
In Windows Vista, there are two types of user accounts: standard user
accounts and administrator accounts. Additionally, Windows Vista provides
User Account Control (UAC) to improve system security by limiting the
operating system access available to standard user accounts and requiring
members of the Administrators group (except the Administrator account) to
acknowledge the elevation of privileges when performing certain actions. The
primary difference between a standard user and an administrator in Windows
Vista is the level of access the user has over core, protected areas of the
computer. With UAC enabled, Windows Vista either prompts for consent to
elevate privileges (in the case of a user in the Administrators group) or for
administrator credentials to elevate privileges (in the case of all other users)
before launching a program or task that requires full administrator access.
UAC prompts members in the Administrators group (except the
Administrator account) to click Continue, if they need to elevate privileges,