刚下载的vs2015总是显示需要重新安装，该怎么办？

Question

它显示“Cannot find one or more components.Please reinstall the application."

Answer 1

可能是已经安装的组件找不到，需要重新运行安装程序，以安装这些必备的系统组件。

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Answer 2

重新安装几次了也依然这样显示

Answer 3

你好，

从你的问题描述来看，安装包可能没有问题，可能和你的用户账号权限有关。

请下载SubInAcl这个工具，去修复文件注册表权限问题，

1.下载 SubInACL tool 并且安装. 默认情况下这会安装在 c:\Program Files\Windows Resource Kits\Tools

2.在开始菜单，选择“运行”，用管理员权限运行cmd。

3.在命令行提示符窗口， 输入notepad reset.cmd ，选择进入Notepad.exe，创建一个reset.cmd 命名的文本文件。

3.将如下文本拷贝到reset.cmd里面并且保存（或者从this location on my file server 拷贝）。

@echo off
	title Resetting ACLs...
	setlocal
	echo.
	echo Determine whether we are on an 32 or 64 bit machine
	echo.
	if "%PROCESSOR_ARCHITECTURE%"=="x86" if "%PROCESSOR_ARCHITEW6432%"=="" goto x86
	set ProgramFilesPath=%ProgramFiles(x86)%
	goto startResetting
	:x86
	set ProgramFilesPath=%ProgramFiles%
	:startResetting
	echo.
	if exist "%ProgramFilesPath%\Windows Resource Kits\Tools\subinacl.exe" goto filesExist
	echo ***ERROR*** - Could not find file %ProgramFilesPath%\Windows Resource Kits\Tools\subinacl.exe. Double-check that SubInAcl is correctly installed and re-run this script.
	goto END
	:filesExist
	pushd "%ProgramFilesPath%\Windows Resource Kits\Tools"
	echo.
	echo Resetting ACLs...
	echo (this may take several minutes to complete)
	echo.
	echo IMPORTANT NOTE: For this script to run correctly, you must change
	echo the values named YOURUSERNAME to be the Windows user account that
	echo you are logged in with.
	echo.
	echo ==========================================================================
	echo.
	echo.
	subinacl.exe /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=YOURUSERNAME=f /setowner=administrators > %temp%\subinacl_output.txt
	echo.
	echo.
	subinacl.exe /keyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=YOURUSERNAME=f /setowner=administrators >> %temp%\subinacl_output.txt
	echo.
	echo.
	subinacl.exe /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt
	echo.
	echo.
	subinacl.exe /keyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt
	echo.
	echo.
	subinacl.exe /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt
	echo.
	echo.
	subinacl.exe /keyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt
	echo.
	echo.
	echo System Drive...
	subinacl.exe /subdirectories %ProgramFilesPath%\ /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt
	echo.
	echo.
	echo Windows Directory...
	subinacl.exe /subdirectories %windir%\ /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt
	echo.
	echo.
	echo ==========================================================================
	echo.
	echo FINISHED.
	echo.
	echo Press any key to exit . . .
	pause >NUL
	popd
	:END

具体步骤请参考：

https://social.msdn.microsoft.com/Forums/vstudio/en-US/27fed8bb-7ffa-40e5-a920-3ed0e2bdac72/visual-studio-2013-cannot-find-one-or-more-components?forum=visualstudiogeneral

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Answer 4

完成这些步骤之后就可以运行了吗？

Answer 5

上面的这些步骤是用来修复你电脑商损坏的注册表文件信息。之后建议你下载一个完整的VS镜像文件安装VS，用FCIV这个工具验证ISO的哈希值，确认ISO安装包是完整的再进行安装。

这是使用工具和使用方法链接
 http://support.microsoft.com/kb/841290

微软官方下载链接：
https://www.visualstudio.com/en-us/downloads/download-visual-studio-vs.aspx

哈希值链接
https://www.visualstudio.com/en-us/downloads/visual-studio-2015-iso-sha1-vs.aspx

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MSDN Community Support
Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [e-mail].