To view the files:
1. Start Explorer
2. From the Tools menu select 'Folder Options'
3. Select the 'View' tab
4. Unselect the 'Hide protected operating system files (Recommended)' box
As you can see, they are "protected OS files" that you really don't want to remove.
But if you really want to, you cannot do it via the OS you are using. Try the recovery console or Linux. But really, if you have no reason other than freeing up some space, I would not do this.