0457名無しさん@お腹いっぱい。
2019/11/26(火) 11:18:33.12For my case,
Reboot PC to safe mode.
Copy the missing file to \\?\C:\ProgramData\Symantec\Symantec Endpoint Protection\14.2.4814.1101.105\Data\Cached Installs\
Reboot to normal mode and install the patch again. It should go thru without issue.