Not all editions of Windows OS support Encrypting File System(EFS). In the unsupported editions if you go to properties and advanced you see that the check button “Encrypt contents to secure data” option is not configurable and is greyed out. Below listed are the Windows editions which does not support native windows EFS feature.
- Windows XP Home
- Vista Home Basic
- Vista Home Premium
- Windows 7 Starter
- Windows 7 Home Basic
- Windows 7 Home Premium
Below is a snapshot on Windows XP Home edition.
Some Questions on File Encryption:
I am running one of the EFS unsupported editions; Does it mean that I can’t encrypt files on my computer?
No, you still can encrypt files. You can use any of the third party encryption tools available in the internet. Go through the reviews and pick up the best one that suits your requirements.
My Windows supports EFS and encrypt conents to secure data is not disabled. But the details button next to it is greyed out. Why?
The Details button gets activated only when the file is in encrypted state. You can check this yourself. This button shows which users have transparent access to read the file.