我的 Windows 10 LTSC 2019 安装似乎无法更新 Windows Defender 定义。尽管网上有无数关于定义更新失败的讨论,但我已经尝试了我能找到的所有解决方案,但似乎都没有任何区别。这是我尝试过的:
(KB2267602,错误 0x80070643)。请注意,所有其他 Windows 更新都已成功安装 - Defender 定义是它找到的唯一“待定更新”。
Windows 更新疑难解答没有发现任何问题
尝试通过命令行更新(管理员):
"C:\Program Files\Windows Defender\MPCMDRUN.exe" -RemoveDefinitions -All
"C:\Program Files\Windows Defender\MPCMDRUN.exe" -SignatureUpdate
产量错误 hr=80070643。截屏:
... MpCmdRun.log 显示:
MpEnsureProcessMitigationPolicy: hr = 0x1
Start: MpSignatureUpdate()
Calling MpUpdateStartEx with option 0x1
Update started
Search Started (MU/WU update) (Path: https://fe2.update.microsoft.com/v6/)...
Search Completed
Download Started...
Download Completed
Download Completed
Installation Started...
Update failed with hr: 0x80070643
Installation Completed
Update failed with hr: 0x80070643
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