(Update - 2/17 Editing for clarity based on feedback)
If you are currently experiencing the 0x80070bc2 error while attempting to install
KB4074588,
please try this:
In the search box on the taskbar, type
cmd.
Right-click
Command Prompt in the search results and select Run as administrator.(Select Yes, when prompted by the User Account Control.)
In the Administrator: Command Prompt window, type the following command and press Enter:
SC config trustedinstaller start=auto
Restart the PC.
In some cases, a second restart may be required. If you look under
Settings > Update & security and you see the message
Status: Awaiting restart, restart the PC a second time to complete the installation.
Paul...
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