你好
您电脑的启动项中含DLL文件，或含DLL文件调用的进程
如果你不想重装或还原系统。解决方法有点麻烦，请你仔细看一下：
新建一个文本文档，将后缀改为.BAT，复制以下内容进去，保存，关闭，运行该文档即可。该批处理文件将清除您电脑中所有非原系统的启动项。
@ ECHO OFF
reg delete HKEY_LOCAL_MACHINE\SOFTWARE&#WhatsApp连不上网92;Microsoft\Windows\CurrentVersion\Run /va /f
reg delete HKEY_CURRENT_USER&#WhatsApp外贸92;Sofwhatsapp网页版在线登录tware\Microsoft\Windows\CurrentVersion\Run /va /f
reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v ctfmon.exe /d C:\WINDOWS\system32\ctfmon.exe
reg delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg /f
reg add HKEY_LOCAL_MACHIWhatsApp网页版登录地址NE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1 /v command /d C:\WINDOWS\IME\imjp8_1\IMWhatsApp网页版登陆JPMIG.EXE /Spoil /RemAdvDef /Migration32
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1 /v hkey /d HKLM
reg add HKEY_WhatsApp网页地址LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1 /v inimapping /d 0
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1 /v item /d IMJPMIG
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\IMJPMIG8.1 /v key /d SOFTWARE\Microsoft\Windows\CurrentVersion\Run
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A /v command /d C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A /v hkey /d HKLM
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A /v inimapping /d 0
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A /v item /d TINTSETP
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002A /v key /d SOFTWARE\Microsoft\Windows\CurrentVersion\Run
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002ASync
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002ASync /v command /d C:\WINWhatsapp软件下载DOWS\IME\imjp8_1\IMJPMIG.EXE /Spoil /RemAdvDef /Migration32
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002ASync /v hkey /d HKLM
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Micrwhatsapp网页版登录osoft\Shared Tools\MSConfig\startupWhatsApp网页版入口登录reg\PHIME2002ASync /v inimapping /d 0
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002ASync /v item /d TINTSETP
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\PHIME2002Whatsapp电脑版下载ASync /v key /d SOFTWARE\Microsoft\Windows\CurrentVersion\Run
del C:\Documents and Settings\All Users\「开始」菜单\程序\启动\*.* /q /f
del C:\Documents and Settings\Default User\「开始」菜单\程序\启动\*.* /q /f
del %userprofile%\「开始」菜单\程序\启动\*.* /q /f

你下载的文件是什么格式的，如果是ISO的就直接写到硬盘里，如果是DMG的就用软碟通来转换格式！

你可以试试换个后缀打开

添加个后缀名试试，挨个添加试试

你visual studio没装C#开发的Package

可能是你电脑里面的CAD版本过低而导致打不开

WhatsApp网页版请注明：WhatsApp网页版 » WhatsApp撤回消息 et服装cad打开文件是出现文件类型不对,该怎么处理