Understanding User Account Control

User Account Control (UAC) is a feature that started with Windows Vista and is included with Windows Server 2008 that helps prevent unauthorized changes to your computer. If you are logged in as an administrator, UAC asks you for permission, and if you are logged in as a standard user, UAC asks you for an administrator password before performing actions that can potentially affect your computer’s operation or that change settings that
affect other users. Because the UAC is designed to make sure that unauthorized changes are not made, especially by malicious software that you may not know you are running, you need to read the warnings carefully, and then make sure the name of the action or program that’s about to start is one that you intended to start.

As a standard user, in Windows Server 2008 R2, you can do the following without requiring administrative permissions or rights:

  • Install updates from Windows Update.
  • Install drivers from Windows Update or those that are included with the operating system.
  • View Windows settings.
  • Pair Bluetooth devices with the computer.
  • Reset the network adapter and perform other network diagnostic and repair tasks.

When an application requests elevation or is run as administrator, UAC will prompt for confirmation and, if consent is given, allow access as an administrator.

UAC cannot be enabled or disabled for any individual user account. Instead, you enable or disable UAC for the entire computer. If you disable UAC for user accounts, you lose the additional security protections UAC offers and put the computer at risk. However, if you perform a lot of administrative tasks on a computer, the UAC prompts can be annoying and can stop you from performing certain actions including saving to the root directory
of a drive.

Enable or Disable UAC

To enable or disable UAC for a particular user account, follow these steps:

  1. In Control Panel, click User Accounts.
  2. On the User Accounts page, click User Accounts.
  3. Click the Change User Account Control settings. See Figure below.
  4. Then slide the slider to the appropriate option level as shown in Table below.
  5. When prompted to restart the computer, click Restart Now or Restart Later as appropriate for the changes to take effect.
    User Account Control 1

    Figure: UAC Settings

    User Account Control 2

Articles in this Course

  1. Selecting Server Hardware
  2. Selecting the Software
  3. Performing Clean Installation of Windows Server 2008 R2
  4. Performing an Upgrade to Windows Server 2008 R2
  5. Disk Cloning and System Preparation Tool
  6. Performing an Unattended Installation
  7. Installing Windows Server 2008 R2 Using Windows Deployment Services
  8. Understanding Windows Licensing
  9. Understanding Windows Activation
  10. Understanding Windows Updates
  11. Understanding User Account Control
  12. Introducing System Settings
  13. Changing Computer Name and Domain Settings
  14. Configuring Remote Settings
  15. Changing Date and Time
  16. Understanding Plug and Play Devices
  17. Understanding Signed Drivers
  18. Using Devices and Printers
  19. Using Device Manager
  20. Using Computer Management Console and Server Management Console
  21. Managing Programs
  22. Managing Roles and Features
  23. Comparing IDE and SCSI Drives
  24. Introducing Redundant Arrays of Independent Disks
  25. Introducing Hot Spares
  26. Using Storage Explorer and Storage Manager
  27. Introducing Disk Partitioning Styles
  28. Comparing Types of Disks
  29. Introducing File Systems
  30. System Information
  31. Using the Event Viewer
  32. Understanding Boot.ini
  33. Understanding BCDEdit
  34. Understanding Advanced Boot Menu
  35. Using the System Configuration Tool
  36. Understanding Virtual Memory and Paging File
  37. Using Task Manager
  38. Using Performance Monitor
  39. Using Resource Monitor
  40. Introducing Fault-Tolerant Components
  41. Understanding Clustering
  42. Understanding Power
  43. Introducing Backup Media
  44. Introducing Backup Items
  45. Introducing Microsoft Windows Backup
  46. Understanding Shadow Copies of Shared Folders
  47. Understanding HOSTS and LMHOSTS Files
  48. Exploring DNS
  49. WINS
  50. Introducing Domains and Trees and Forests
  51. Introducing Sites and Domain Controllers
  52. Introducing Organizational Units
  53. Looking at Objects
  54. Introducing Groups
  55. Introducing Group Policy
  56. Setting NTFS Permissions
  57. Looking at Effective NTFS Permissions
  58. Copying and Moving Files
  59. Looking at Folder and File Owners
  60. Encrypting Files with NTFS
  61. Network Discovery and Browsing
  62. Looking at Special and Administrative Shares
  63. Installing Printers
  64. Looking at Printer Properties
  65. Setting Printer Permissions
  66. Managing Print Jobs
  67. Configuring Internet Printing
  68. Managing Web Sites with IIS
  69. Managing FTP with IIS
  70. Creating Virtual Machines
  71. Managing Virtual Machines