Win8系统提示无效密钥错误代码0x80070424怎么办

　　原因分析：

　　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，那么我们可以参考如下方案，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,

[Ok3w_NextPage]

　　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