如何强制 Windows 检查更新？

Question

在全新的 Windows 安装（XP 或 7）之后，我如何“强制”Windows 更新？

我不想在一周后进行“旧”Windows 更新，所以可以“一步”完成吗？是否有任何“神奇”命令可以强制 Windows 检查更新，如果有，请安装它们？

Answer 1

除了使用 Windows 更新的通常方式之外，您还可以从命令行强制检查。

打开管理员命令提示符并运行：

C:\> %windir%\system32\wuauclt.exe /detectnow

Wuauclt.exe 是 Windows Update 的 AutoUpdate 客户端，用于检查来自 Microsoft Update 的可用更新（针对 MS Windows 平台的各种版本）。

这不会强制安装。

Answer 2

您可以使用脚本自动检查和安装更新。这将适用于 XP 或 Windows 7。

有许多脚本可供下载，这是我的：

' Written in 2007 by Harry Johnston, University of Waikato, New Zealand.
' This code has been placed in the public domain.  It may be freely
' used, modified, and distributed.  However it is provided with no
' warranty, either express or implied.
'
' Exit Codes:
'   0 = scripting failure
'   1 = error obtaining or installing updates
'   2 = installation successful, no further updates to install
'   3 = reboot needed; rerun script after reboot
'
' Note that exit code 0 has to indicate failure because that is what
' is returned if a scripting error is raised.
'

Set updateSession = CreateObject("Microsoft.Update.Session")

Set updateSearcher = updateSession.CreateUpdateSearcher()
Set updateDownloader = updateSession.CreateUpdateDownloader()
Set updateInstaller = updateSession.CreateUpdateInstaller()

Do

  WScript.Echo
  WScript.Echo "Searching for approved updates ..."
  WScript.Echo

  Set updateSearch = updateSearcher.Search("IsInstalled=0")

  If updateSearch.ResultCode <> 2 Then

    WScript.Echo "Search failed with result code", updateSearch.ResultCode
    WScript.Quit 1

  End If

  If updateSearch.Updates.Count = 0 Then

    WScript.Echo "There are no updates to install."
    WScript.Quit 2

  End If

  Set updateList = updateSearch.Updates

  For I = 0 to updateSearch.Updates.Count - 1

    Set update = updateList.Item(I)

    WScript.Echo "Update found:", update.Title

  Next

  WScript.Echo

  updateDownloader.Updates = updateList
  updateDownloader.Priority = 3

  Set downloadResult = updateDownloader.Download()

  If downloadResult.ResultCode <> 2 Then

    WScript.Echo "Download failed with result code", downloadResult.ResultCode
    WScript.Echo

    WScript.Quit 1

  End If

  WScript.Echo "Download complete.  Installing updates ..."
  WScript.Echo

  updateInstaller.Updates = updateList

  Set installationResult = updateInstaller.Install()

  If installationResult.ResultCode <> 2 Then

    WScript.Echo "Installation failed with result code", installationResult.ResultCode

    For I = 0 to updateList.Count - 1

      Set updateInstallationResult = installationResult.GetUpdateResult(I)
      WScript.Echo "Result for " & updateList.Item(I).Title & " is " & installationResult.GetUpdateResult(I).ResultCode

    Next

    WScript.Quit 1

  End If

  If installationResult.RebootRequired Then

    WScript.Echo "The system must be rebooted to complete installation."

    WScript.Quit 3

  End If

  WScript.Echo "Installation complete."

Loop 

您可以像这样从命令行运行它：

cscript wsusupdate.vbs

我的脚本只有最低限度的功能，但可能仍然有用。还有其他具有许多附加功能的此类脚本，请尝试使用 Google 搜索。

Answer 3

要检查更新，请转到“控制面板”、“安全”、“Windows 更新”，然后单击“检查更新”。