File? You can use 3rd party software sucha s TrueCrypt or Kakasoft Folder Protector to encrypt files.
Yes, you can use free file encryption software to encrypt files for free.Winrar, TrueCrypt and Kakasoft Folder Protector all allow you to encrypt files for free.
A digital certificate.
I've used Kakasoft Folder Protector for file encryption. It adopts 256-bit AES encryption technology and is able to encrypt files on computer or drive.
EFS stands for Encrypted File System and is used to encrypt folders and files in Windows XP or Vista.This encryption works ONLY when using the Windows NTFS file system!
cipher
see http://support.microsoft.com/kb/941674
NTFS
I suggest you use "Encryption Shield". It has powerful function like encrypting your files or folders. Moreover, after putting in the correct password, you can open, edit or save the file. After closing it, it is still in encrypted state, and there is no need to encrypt it again. On my bio page, there is the homepage about encryption shield and you can know more there.
The command 'cipher' calls a program that is integrated with Windows that can encrypt-decrypt files.
One way to secure a file on your computer is to protect it with a password. Other ways to protect personal files is to encrypt them or editing permission settings on your computer.
You can encrypt the files/folders with password if the drive doesn't support encryption. Since drives with encryption feature are costly, you can use software to encrypt the files on drives. For example, TrueCrypt, 7 zip, Kakasoft Folder Protector are all good encryption software.
You can encrypt any types of files with this useful program ' Encrypt4all ' , home page : www.encrypt4all.com