BECKHOFF IPC-Security - Manual (Page 56)

restart the operating system to make the changes become active.
To make a drive letter disappear from the Explorer view, you need to create a new REG_DWORD key called
NoDrives under the registry path from above. This key’s value needs to be calculated according to the table
above. Be aware that the drive letters are indeed not visible however they can be accessed by directly
referencing them using the command line or other file access software!
It is possible to use both settings simultaneously.
A.4.3.12. Configuring EFS
To configure the Encrypting File System (EFS), please perform the following steps:
1. Right-click a file or folder and select Properties
2. Under the tab General, click on the button Advanced, which will show you a window as follows:
3. To encrypt the selected resource, activate the checkbox Encrypt contents to secure data
If this is the first time you encrypted a file or folder on this system, Windows XP automatically adds an EFS
certificate to the local certificate store. It is important that you create a backup of this certificate, otherwise
you wouldn’t be able to recover your encrypted resources in case of a system crash! To view and export
the certificate, please do the following:
1. Open Start and select Run
2. Enter mmc.exe and click on OK
3. Go to File, select Add/Remove Snap-in and click on Add
4. Click on Add and select the Certificates Snap-in
5. Click on Add again and select My user account
6. Click on Finish and close all open windows. You should now see the following window:
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