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如何判断Win10系统是否为全新安装还是升级而来？

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　　如何判断Win10系统是否为全新安装还是升级而来？Win10系统越来越多人使用了，当你打开一台Win10电脑，你知道这Win10系统是全新安装的还是从早期版本升级来的吗？如果你好奇的话，可以看看小编整理的以下文章，帮你轻松鉴定Win10系统是否为全新安装，如果是升级而来，还能看到从什么系统的什么版本何时升级而来，废话不多说，下面我们就开始吧！

　　注：鉴于修改注册表有风险，所以建议修改前备份注册表，或者创建系统还原点，以便出现问题时恢复。

　　如何判断是否是升级而来？

　　1、打开注册表编辑器，定位至：

　　HKEY_LOCAL_MACHINE\SYSTEM\Setup

　　2、在 Setup 项下查看有没有 Upgrade 项。如图：

　　如果有，则是升级而来；反之，如果没有，则说明当前的Win10系统是全新安装的。

　　如何查看是从什么系统的什么版本何时升级而来？

　　如果已经判断出当前Win10系统是升级而来，那么在 Setup 项下还可以看到一些名称形如 Source OS （Updated on 9/4/2017 08:55:10） 的项。如图：

　　这些Source OS项就是Win10系统的升级记录，名称中括号内的日期时间就是升级的时间。选中某个Source OS项，在右侧窗口查看 ProductName 值和 ReleaseId 值。

　　ProductName 值：操作系统的版本，也就是从哪个版本的操作系统升级而来。例如艾薇百科-www.aiweibk.com这里显示的是 Windows 10 Pro Insider Preview ，意思就是当前的Win10系统是从Windows 10 Pro Insider Preview（Win10专业预览版）升级而来。

　　ReleaseId 值：系统版本号。例如艾薇百科这里显示的是 1703，意思就是从Win10 1703（创新者更新预览版）升级而来。

　　以上就是判断Win10系统是否为全新安装的操作方法，使用注册表即可查看出，好奇的伙伴，不妨试试看！

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  8. 请求路径: /win10jc/38487.html
  9. 运行时间: 2.5241
  10. 内存开销: 1.09 MB
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