当您尝试在 Windows 7 或 Windows Vista 安装程序时，显示"Windows Installer服务无法访问"的错误

重要：此部分、 方法或任务包含一些介绍如何修改注册表的步骤。但是，如果不正确地修改了注册表，可能会出现严重的问题。因此，请确保仔细按照下列步骤操作。为增加保护，对其进行修改之前备份注册表。然后，您可以在出现问题时还原注册表。有关如何备份和还原注册表的详细信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章︰ 322756如何备份和还原在 Windows 注册表

要重新设置注册表中的 Windows 安装程序服务设置，请使用记事本创建注册表文件。然后，运行该文件以更新注册表项。

若要执行此操作，请执行以下步骤：

1. 单击开始，然后在搜索框中键入记事本。

2. 在程序标题下单击Notepad.exe。

3. 复制下面的文本，然后将其粘贴到记事本中︰
   

   Windows Registry Editor Version 5.00
    
   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\msiserver]
   "DisplayName"="@%SystemRoot%\\system32\\msimsg.dll,-27"
   "ImagePath"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,\
     74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,6d,\
     00,73,00,69,00,65,00,78,00,65,00,63,00,20,00,2f,00,56,00,00,00
   "Description"="@%SystemRoot%\\system32\\msimsg.dll,-32"
   "ObjectName"="LocalSystem"
   "ErrorControl"=dword:00000001
   "Start"=dword:00000003
   "Type"=dword:00000010
   "DependOnService"=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,00,00
   "ServiceSidType"=dword:00000001
   "RequiredPrivileges"=hex(7):53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76,\
     00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,\
     74,00,65,00,50,00,61,00,67,00,65,00,66,00,69,00,6c,00,65,00,50,00,72,00,69,\
     00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,00,6f,00,63,00,\
     6b,00,4d,00,65,00,6d,00,6f,00,72,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,\
     00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,\
     73,00,65,00,42,00,61,00,73,00,65,00,50,00,72,00,69,00,6f,00,72,00,69,00,74,\
     00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,\
     65,00,43,00,72,00,65,00,61,00,74,00,65,00,50,00,65,00,72,00,6d,00,61,00,6e,\
     00,65,00,6e,00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\
     00,00,53,00,65,00,41,00,75,00,64,00,69,00,74,00,50,00,72,00,69,00,76,00,69,\
     00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,\
     69,00,74,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,\
     00,53,00,65,00,43,00,68,00,61,00,6e,00,67,00,65,00,4e,00,6f,00,74,00,69,00,\
     66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,\
     00,65,00,50,00,72,00,6f,00,66,00,69,00,6c,00,65,00,53,00,69,00,6e,00,67,00,\
     6c,00,65,00,50,00,72,00,6f,00,63,00,65,00,73,00,73,00,50,00,72,00,69,00,76,\
     00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6d,00,70,00,65,00,\
     72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,\
     00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,74,00,65,00,\
     47,00,6c,00,6f,00,62,00,61,00,6c,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,\
     00,67,00,65,00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,\
     72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,72,\
     00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,\
     73,00,74,00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,\
     00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,73,00,65,00,\
     51,00,75,00,6f,00,74,00,61,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,\
     00,65,00,00,00,53,00,65,00,53,00,68,00,75,00,74,00,64,00,6f,00,77,00,6e,00,\
     50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,\
     00,61,00,6b,00,65,00,4f,00,77,00,6e,00,65,00,72,00,73,00,68,00,69,00,70,00,\
     50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,\
     00,6f,00,61,00,64,00,44,00,72,00,69,00,76,00,65,00,72,00,50,00,72,00,69,00,\
     76,00,69,00,6c,00,65,00,67,00,65,00,00,00,00,00
   "FailureActions"=hex:84,03,00,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
     00,01,00,00,00,c0,d4,01,00,01,00,00,00,e0,93,04,00,00,00,00,00,00,00,00,00
    
   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\msiserver\Enum]
   "0"="Root\\LEGACY_MSISERVER\\0000"
   "Count"=dword:00000001
   "NextInstance"=dword:00000001

4. 单击文件，单击另存为，将其命名为 Msirepair.reg 的文件。

5. 在另存为类型框中，单击的所有文件 (*。 *)。

6. 在保存在框中，单击桌面，然后单击保存。

7. 在文件菜单上，单击退出以关闭记事本。

8. 在桌面上，Msirepair.reg，用鼠标右键单击，然后单击以管理员身份运行。如果提示您输入管理员密码或进行确认，键入密码，或单击继续。

9. 当提示您安装的注册表项，请单击是。

10. 请重新启动您想要安装该程序的安装过程。

要启动 Windows 安装程序服务，请执行以下步骤︰

1. 单击开始，然后在搜索程序和文件es对话框中键入CMD 。
   

2. Cmd.exe，用鼠标右键单击，然后单击以管理员身份运行。
   

3. 键入网络启动 MSIServer，，然后按输入。
   

4. 请重新启动您想要安装该程序的安装过程。

检查 Windows 安装程序服务正在运行，请执行以下步骤︰

1. 单击开始，在搜索框中，键入services.msc ，然后单击程序标题下的服务。

2. 在服务 （本地）列表中，用鼠标右键单击Windows 安装程序，，然后单击属性。

3. 在启动类型下拉列表，检查值设置为手动。

4. 如果 Windows 安装程序服务正在运行服务状态︰条目设置为运行。

如果计算机上已安装要安装的程序的早期版本，请按照下列步骤︰

1. 单击开始，单击控制面板，然后单击程序下的卸载程序。

2. 选择列表中您想要安装的程序。

3. 单击卸载（或在 Windows Vista 中卸载/更改），然后按照说明或提示卸载该应用程序。

4. 重新启动计算机。

5. 请重新启动您想要安装该程序的安装过程。