When you encrypt a folder, you receive:
An error occurred applying attributes to the file:
<Drive:>\Folder\Filename - Access is denied.
The most likely cause of this error is that a file or sub-folder has the System attribute turned on.
To fix the problem, remove the system attribute, using the attrib command:
attrib \[+r|-r\] \[+a|-a\] \[+s|-s\] \[+h|-h\] \]\[path\] filename\] \[/s\[/d +r Sets the Read-only file attribute. -r Clears the Read-only file attribute. +a Sets the Archive file attribute. -a Clears the Archive file attribute. +s Sets the System file attribute. -s Clears the System file attribute. +h Sets the Hidden file attribute. -h Clears the Hidden file attribute. \[\[drive:\]\[path\] filename\] Specifies the location and name of the directory, file, or set of files you want to process. You can use wildcard characters (? and *) in the filename parameter to display or to change the attributes for a group of files. /s Processes matching files in the current directory and all of its subdirectories. /d Processes directories.NOTE: Never encrypt files or sub-folders in %SystemRoot%. Doing so will likely prevent your installation from restarting.