Win8系统提示无效的产品密钥错误代码0x80070424，如下图所示：

故障分析：

可能是Software Protection服务丢失，即在services中无法找到该服务。

解决方法：

1、按”Win+R”组合键，调出运行框，输入: services.msc 并回车，查找Software Protection服务；

2、如果找不到Software Protection服务，通过导入Software Protection键值，重建Software Protection服务，来解决该问题；

3、新建一个记事本文件，将以下文字复制粘贴到记事本中，以“SP.reg”命名并保存于桌面；

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicessppsvc]

"StartProtected"=dword:00000001

"DisplayName"="@%SystemRoot%system32sppsvc.exe,-101"

"ErrorControl"=dword:00000001

"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,

74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,

00,70,00,70,00,73,00,76,00,63,00,2e,00,65,00,78,00,65,00,00,00

"Start"=dword:00000002

"Type"=dword:00000010

"Description"="@%SystemRoot%system32sppsvc.exe,-100"

"DependOnService"=hex(7):52,00,70,00,63,00,53,00,73,00,00,00,00,00

"ObjectName"="NT AUTHORITYNetworkService"

"ServiceSidType"=dword:00000001

"RequiredPrivileges"=hex(7):53,00,65,00,41,00,75,00,64,00,69,00,74,00,50,00,72,

00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,68,00,

61,00,6e,00,67,00,65,00,4e,00,6f,00,74,00,69,00,66,00,79,00,50,00,72,00,69,

00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,

61,00,74,00,65,00,47,00,6c,00,6f,00,62,00,61,00,6c,00,50,00,72,00,69,00,76,

00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6d,00,70,00,65,00,

72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,

00,65,00,67,00,65,00,00,00,00,00

"DelayedAutoStart"=dword:00000001

"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,

00,01,00,00,00,c0,d4,01,00,01,00,00,00,e0,93,04,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicessppsvcSecurity]

"Security"=hex:01,00,14,80,a0,00,00,00,ac,00,00,00,14,00,00,00,30,00,00,00,02,

00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,

00,00,02,00,70,00,05,00,00,00,00,00,14,00,ff,01,02,00,01,01,00,00,00,00,00,

05,12,00,00,00,00,00,18,00,fd,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,

20,02,00,00,00,00,14,00,9d,01,02,00,01,01,00,00,00,00,00,05,04,00,00,00,00,

00,14,00,9d,01,02,00,01,01,00,00,00,00,00,05,06,00,00,00,00,00,14,00,14,00,

00,00,01,01,00,00,00,00,00,05,0b,00,00,00,01,01,00,00,00,00,00,05,12,00,00,

00,01,01,00,00,00,00,00,05,12,00,00,00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicessppsvcTriggerInfo]

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicessppsvcTriggerInfo]

"Type"=dword:00000014

"Action"=dword:00000001

"GUID"=hex:da,8a,52,f5,5f,be,14,4f,8a,ef,a9,5d,e7,28,11,61

4、请您双击“SP.reg”，当系统提示您是否确认导入注册表时，请点击“是”，之后会有提示说明已经成功导入注册表；

5、重启后，再次进入”服务”控制面板查看，可以找到Software Protection服务，右击并选择启用。

备注：Software Protection是一个重要的服务，Win8系统提示无效的产品密钥，且报错0x80070424都是由此服务丢失导致的。

以上就是对Win8系统提示无效的产品密钥错误代码0x80070424的故障分析及解决方法的介绍，，用户通过上述方法，导入修改注册表便可恢复这项服务。

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