Pondus
4
what should I do?
Nothing, it is normal but all security programs does not show files they can not scan in log
Is there a reason avast cant read these
It should say why in the avast message ... anyway this is normal and nothing to worry about
Is there a reason avast cant read these because [b]they are all avast update files.[/b]
They are [b]NOT[/b], WinSxS belongs to WinOS and not avast
As said in previous posts, you can clean/remove all unnecessary files with CCleaner
WinSxS Folder in Windows 10/8/7 explained
http://www.thewindowsclub.com/winsxs-folder-windows-7-8
If you started google searching as suggested many times before, you can also find this info