无法安装 Windows 8.1 更新 - 错误 0x800f081f

Question

我的笔记本电脑预装了 Windows 8。我安装了所有 Microsoft 更新，包括到 8.1 的更新，并继续这样做。

最新的更新是 KB 2912355，这是一个巨大的 890 MB。尽管进行了多次尝试，这还是拒绝了 ti install。

系统报错800F081F。查看了 Microsoft 在线支持后，我尝试了以下操作：-

DISM.exe /Online /Cleanup-image /Restorehealth

这失败了，有以下评论：-

The restore operation failed. Either the repair source was not found or the component store cannot be repaired.
Error: 0x800f081f

因此，我尝试了“修复 Windows 映像”下的下一个建议：-

Dism /Online /Cleanup-Image /ScanHealth

这报道：-

The component store is repairable.
The operation completed successfully.

我接下来跑了：-

Dism /Online /Cleanup-Image /CheckHealth

这也报道了：-

The component store is repairable.
The operation completed successfully.

因此我接下来跑了：-

Dism /Online /Cleanup-Image /RestoreHealth

输出是：-

The restore operation failed. Either the repair source was not fou
onent store cannot be repaired.

Error: 0x800f081f

DISM failed. No operation was performed.
For more information, review the log file.

The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log

C:\WINDOWS\system32>Dism /Cleanup-Image /RestoreHealth

Deployment Image Servicing and Management tool
Version: 6.3.9600.16384
Error: 87
The cleanup-image option is unknown.
For more information, refer to the help by running DISM.exe /?.

我确实查看了 DISM 帮助，但选项太多且太复杂，以至于我一无所获。

根据微软的说法，我有一个可修复的图像，但他们建议的一切都不起作用！

如果有人能建议下一步尝试什么，我将不胜感激！