Access denied to certain folders

After performing a backup there are several folders which are not backuped because access is denied.
I use an administrator account and the folders can be opened using explorer.
Access for example is denied to:
C:\Windows\WUModels
C:\Windows\SysWOW64\Tasks
C:\Windows\SysWOW64\NetworkList
C:\Windows\SysWOW64\Msdtc
C:\Windows\SysWOW64\Configuration

Anyone have an idea how to solve this?

Welcome to the forum @Jos

In explorer test, did you ever have to make access like this?

Does Duplicati use the same account as your explorer test?

What’s in these folders anyway? That’s relevant for restores.

Keep in mind that an administrator account has no special power until it’s elevated.

How User Account Control works

Is it Access Denied? I imagine that the folders can also be locked for various reasons, so you need to use snapshots to get access to it.

You should also verify that a restore has the intended effect. This part of Windows can be slightly picky and not always as simple as just putting back the files.