Windows更新服务不见了，有什么解决办法？

Windows 更新是微软提供的一项重要服务。此外，每次更新都会解决问题、提供新的安全问题并更新 Windows 的各种功能。缺少 Windows 更新服务意味着 services.msc 中的服务列表中缺少服务“wuauserv”或“Windows 更新”。此问题通常会显示错误安装更新时出现一些问题，但我们稍后会使用错误代码0x80070006、0x80080005或0x80070424 重试。此外，对于为什么会发生此错误或为什么删除更新服务，没有明确的原因。通常怀疑是第三方应用程序或 Windows 更新文件中的损坏。

即使用户可能会停止更新或不想更新，但与 Windows 链接的应用程序可能会停止响应。例如，如果您的版本落后于当前版本太多，Microsoft Store 将停止工作。此外，即使是第三方应用程序在运行时也会遇到问题，或者由于 Windows 缺少关键文件，它们可能根本无法运行。

重置电脑

当您的驱动器中没有一些重要文件时，应使用此解决方案。此外，此方法会从 Windows 设置应用程序中安装全新的 Windows 安装。同样，您可能不得不删除所有文件，因为它们可能已损坏。但是，此选项还提供了保留数据的选项。但是，为了安全起见，您应该始终创建数据备份。要重置您的电脑：

首先，按Windows 键并输入Settings。
单击更新和安全。
然后，转到恢复
然后，单击重置此电脑下的开始。
最后，选择保留个人文件或删除所有内容。
最后，Windows 将重置您的电脑。您的 PC 可能会重新启动几次。

创建注册表项

另一方面，如果您不懂技术或不想冒丢失数据的风险，则可以尝试此解决方案。它已被证明适用于每个论坛，并且不涉及任何风险。事实上，大多数时候 Windows 机器注册表中缺少 Windows 更新密钥。相比之下，这种方法与前一种方法一样容易执行，没有丢失数据的风险。要重新创建注册表项：

首先，创建一个新的记事本或文本文件。
将以下文本复制到文件中。

Windows 注册表编辑器版本 5.00

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv]
"DependOnService"=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,00,00
"Description"="@%systemroot%\\system32\\wuaueng.dll,-106"
"DisplayName"="@%systemroot%\\system32\\wuaueng.dll,-105"
"ErrorControl"=dword:00000001
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
00,01,00,00,00,60,ea,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"ImagePath"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,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,\
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,\
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,20,00,2d,00,70,00,00,\
00
"ObjectName"="LocalSystem"
"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,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,\
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,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,\
61,00,74,00,65,00,50,00,61,00,67,00,65,00,46,00,69,00,6c,00,65,00,50,00,72,\
00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,00,63,00,\
62,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,\
00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,72,00,69,00,6d,00,61,00,72,00,\
79,00,54,00,6f,00,6b,00,65,00,6e,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,\
00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,73,00,65,00,51,00,\
75,00,6f,00,74,00,61,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,\
00,00,00,53,00,65,00,53,00,68,00,75,00,74,00,64,00,6f,00,77,00,6e,00,50,00,\
72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,44,00,65,\
00,62,00,75,00,67,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\
00,00,53,00,65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,72,00,69,00,76,\
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,73,00,74,00,\
6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,\
00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,69,00,74,00,79,00,50,00,72,00,\
69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,00,61,00,6b,\
00,65,00,4f,00,77,00,6e,00,65,00,72,00,73,00,68,00,69,00,70,00,50,00,72,00,\
69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,00,6f,00,61,\
00,64,00,44,00,72,00,69,00,76,00,65,00,72,00,50,00,72,00,69,00,76,00,69,00,\
6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4d,00,61,00,6e,00,61,00,67,00,65,\
00,56,00,6f,00,6c,00,75,00,6d,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
"ServiceSidType"=dword:00000001
"Start"=dword:00000003
"SvcHostSplitDisable"=dword:00000001
"SvcMemHardLimitInMB"=dword:000000f6
"SvcMemMidLimitInMB"=dword:000000a7
"SvcMemSoftLimitInMB"=dword:00000058
"Type"=dword:00000020
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv\Parameters]
"ServiceDll"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,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,\
77,00,75,00,61,00,75,00,65,00,6e,00,67,00,2e,00,64,00,6c,00,6c,00,00,00
"ServiceDllUnloadOnStop"=dword:00000001
"ServiceMain"="WUServiceMain"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv\Security]
"Security"=hex:01,00,14,80,78,00,00,00,84,00,00,00,14,00,00,00,30,00,00,00,02,\
00,1c,00,01,00,00,00,02,80,14,00,ff,00,0f,00,01,01,00,00,00,00,00,01,00,00,\
00,00,02,00,48,00,03,00,00,00,00,00,14,00,9d,00,02,00,01,01,00,00,00,00,00,\
05,0b,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,14,00,ff,01,0f,00,01,01,00,00,00,00,00,05,12,00,00,00,01,\
01,00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv\TriggerInfo]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv\TriggerInfo\0]
"Type"=dword:00000005
"Action"=dword:00000001
"Guid"=hex:e6,ca,9f,65,db,5b,a9,4d,b1,ff,ca,2a,17,8d,46,e0
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv\TriggerInfo\1]
"Type"=dword:00000005
"Action"=dword:00000001
"Guid"=hex:c8,46,fb,54,89,f0,4c,46,b1,fd,59,d1,b6,2c,3b,50