我是给韩国的客户卖了一批Win10homeOEM在线密钥，客户去年已经把密钥刷入bois了，今年部分电脑系统重装时 ...
那就是oem key出问题了，找微软解决吧，应该是把key给限制了 学习一下 用户无法将 Windows 许可证密钥写入 BIOS。
您所能做的就是将您的 Microsoft 帐户与您当前的许可证相关联。
客户可能未与 Microsoft 帐户相关联。
在这种情况下，要在重新安装后使用许可证密钥，您必须重新激活它。
有必要向运营商说明您已重新安装电话身份验证并让他们发出 CID。
008 错误内容是一个已经在别处使用的许可证密钥。
如果您在未关联 Microsoft 帐户的情况下重新安装。 自然会出现，因为重装前判断为在Windows中使用过。 0x800704cF - This error displayed due to following reason..
This error means we didn’t find a valid Windows license for your device.
You must use a valid product key to activate Windows. Your product key should be in the confirmation email you received after buying Windows, included with the packaging that came with your device, or on the Certificate of Authenticity (COA) attached to the back or bottom of your device.
For help finding your product key, see Find your Windows product key.
If you have a valid product key, use it to activate Windows:
Select Start> Settings> System> Activation .
Select Change product key, and then enter the 25-character product key.
Open Activation settings
If you've made a major change to your device's hardware, such as a motherboard replacement, run the Windows Activation troubleshooter located on the activation settings page. Note that you might be asked to go through the reactivation process. For more info, see Using the Activation troubleshooter.
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