http://support.microsoft.com/kb/951244

首先，当然是确认确实是有管理员权限的。开始->运行,输入 lusrmgr.msc，查看管理员组成员。

然后，开始->运行，输入gpedit.msc，依次展开电脑设置->windows设置->安全设置->本地策略->用户权限指派。确认本地管理员有如下权限：备份文件和文件夹；恢复文件和文件夹；管理审计和安装日志；成为文件或对象拥有者；调试程序。

域环境下可通过组策略批量修改。


RESOLUTION

To resolve this issue, follow these steps:

  1. Verify that the user who is trying to install the hotfix or the update has local Administrator permissions. To do this, follow these steps:

    1. Click Start, and then click Run.

    2. Copy and then paste (or type) the following command in the Open box, and then press ENTER:

      compmgmt.msc

    3. Expand System Tools.

    4. Expand Local Users and Groups.

    5. Click Groups.

    6. Right-click Administrators, and then click Properties.

    7. Verify that the user is a member of the Administrators group, and then click OK.

  2. Verify that the domain Group Policy settings are not too restrictive to install a hotfix or an update. To do this, follow these steps:

  • Backup Files and Directories

  • Restore Files and Directories

  • Manage auditing and security log

  • Take ownership of files or other objects

  • Debug programs

  1. Click Start, point to All Programs, point to Administrative Tools, and then click Active Directory Users and Computers.

  2. Right-click the domain, and then click Properties.

  3. Click the Group Policy tab.

  4. Click Default Domain Policy, and then click Edit.

  5. Expand Computer Configuration.

  6. Expand Windows Settings.

  7. Expand Security Settings.

  8. Expand Local Policies.

  9. Double-click User Rights Assignment.

  10. Locate the following policies, and then add the Administrators group to each policy:

  11. Close the Group Policy dialog box and the Active Directory Users and Computers dialog box.

Click Start, and then click Run.Copy and then paste (or type) the following command in the Open box, and then press ENTER:cmdAt the command prompt, type the following commands, and then press ENTER after each command:gpupdate /force       exitClick Yes if you receive a message to restart the computer.