Files in C:\$Windows.~BT directories can't be scanned

I’m sure there are answers here already but searching didn’t throw anything up.
Other posts on web suggest these files are nothing to worry about but I thought I would check with the forum.

Most files are either .xml or .manifest, but there are a few .inf_loc scattered through the results.

The report contains the error message Error: The file cannot be accessed by the system (1920)

I can’t find the files on the disc so I presume they are hidden system files.

Anything I need to do?

Nothing to worry, those are the update files for W10.

How do I handle files that avast! can’t scan? >> https://blog.avast.com/2014/02/28/how-do-i-handle-files-that-avast-cant-scan/