Python 3.x Can'；t在Win7上安装python-3.7.7

当我尝试安装python-3.7.7时 它说： 一个或多个问题导致安装失败，请修复此问题…等等

下面它说它需要Windows7服务包1。 问题是我已经有了。它显示在windows版本中

我甚至试着重新安装它，认为我从微软得到的文件可能让我有能力修复或者我丢失了一些东西。但是我不能安装它，因为我已经有了它

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以下是日志文件，其中包含：KB2533623需要更新才能继续。 我不是专家，但我想下载“KB2533623” 当我尝试运行它时，它会显示“更新不适用于您的计算机” 所以我甚至试着在网上寻找解决方案，但即使这样也没用

所以我真的不知道该怎么做

以防万一。 我有一个旧的Python安装。 我试图重新安装它，但没有用，在命令行中键入python没有显示任何内容，因此它没有安装

所有这些使我可以使用python，3.4或更高版本，这样我就可以让pycharm正常工作。 不管怎样，我现在可以做什么来启动和运行python

Python安装日志文件 [1C88:178C][2020-04-29T23:13:08]i001:Burn v3.11.1.2318，Windows v6.1（Build 7601:Service Pack 1），路径：C:\Windows\Temp{0E8F56D2-C72A-44CE-8CEB-C519A68C32E2}.cr\python-3.7.exe

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“ActionLikeInstalling”初始化为值“Installing”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“ActionLikeInstallation”初始化为值“Setup”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“ShortVersion”初始化为值“3.7”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“ShortVersionNode”初始化为值“37”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“WinVer”初始化为值“3.7-32”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“WinVerNoDot”初始化为值“37-32”

[1C88:178C][2020-04-29T23:13:08]i000:正在将数值变量“InstallAllUsers”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“InstallLauncherAllUsers”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“TargetDir”初始化为值“”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“DefaultAllUsersTargetDir”初始化为值“[ProgramFilesFolder]Python[WinVerNoDot]”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“TargetPlatform”初始化为值“x86”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“DefaultJustForMeTargetDir”初始化为值“[LocalAppDataFolder]Programs\Python\Python[WinVerNoDot]”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“OptionalFeaturesRegistryKey”初始化为值“Software\Python\PythonCore[WinVer]\InstalledFeatures”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“TargetDirRegistryKey”初始化为值“Software\Python\PythonCore[WinVer]\InstallPath”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“DefaultCustomTargetDir”初始化为值“”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“InstallAllUserState”初始化为值“enabled”

[1C88:178C][2020-04-29T23:13:08]i000:正在将字符串变量“InstallLauncherAllUserState”初始化为值“enabled”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“CustomInstallLauncherAllUserState”初始化为值“[InstallLauncherAllUserState]”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“TargetDirState”初始化为值“enabled”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“CustomBrowseButtonState”初始化为值“enabled”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_core”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_exe”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_dev”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_lib”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_test”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_doc”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_tools”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_tcltk”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_pip”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数字变量“Include_launcher”初始化为值“-1”

[1C88:178C][2020-04-29T23:13:08]i000:将字符串变量“Include_launchester state”初始化为值“enabled”

[1C88:178C][2020-04-29T23:13:08]i000:将数字变量“Include_symbols”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“Include_debug”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量'LauncherOnly'初始化为值'0'

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“DetectedLauncher”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“DetectedOldLauncher”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“AssociateFiles”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:将数值变量“快捷方式”初始化为值“1”

[1C88:178C][2020-04-29T23:13:08]i000:正在将数值变量“PrependPath”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:正在将数值变量“CompileAll”初始化为值“0”

[1C88:178C][2020-04-29T23:13:08]i000:初始化数值变量的