Only the Pro version has EFS and both have Start, Help and Support unless you turned it off.
Here's how to turn it back on ->
1. Press Start then Run then enter
services.msc
then click ok.
2. Find the Help and Support item which is required for Microsoft online help documents. And make sure it's set to Automatic.
3. Now make sure it's not unchecked from showing in the Start menu. Here's how. Right click on the TASK BAR, select Properties. Click the Start Menu tab, tab and then the Customize button. On the new box, click the ADVANCED tab and make sure the Help and Support is checked. Ok your way out.
In closing, here is an article about EFS. Remember that EFS is not to be used trivially and certainly not without some research. It is a fast way to lose access to files.
-> http://www.iopus.com/guides/efs.htm
Notice it warns "Important: Now its time to back up your private key otherwise you are in risk of losing ALL encrypted data once you need to reinstall Windows!!!"
Bob