Bit locker
which version of Windows Home Premium are you referring to Windows Vista Home Premium Windows 7 Home Premium which version Windows Ultimate are you referring to Windows Vista Ultimate Windows 7 Ultimate Windows 8 doesnt include Home Premium Home Basic and Starter the Home User will use Windows 8 and or RT for the Ultimate and Enterprise and small business users Windows 8 Pro there will be no ultimate Windows 8 Pro succeeds Windows 7 Ultimate i dont think you can upgrade from Windows 7 Ultimate to Windows 8 Pro
Windows 7 doesn't come with its own anti-virus, but it does come with something called BitLocker which can encrypt data on your computer for you so it can't be seen by others. It's available on Windows 7 Professional and Windows 7 Ultimate.
The command 'cipher' calls a program that is integrated with Windows that can encrypt-decrypt files.
BitLocker allows to encrypt you hard drive partitions in case if it gets stolen or just to prevent non-authorized access.
to encrypt packet contents so they cannot be read by a hacker
NTFS
Cipher
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!
to encrypt packet contents so they cannot be read by a hacker
Since there's no BitLocker feature in Windows XP, you can only use 3rd party software to encrypt your drive. You can try Kakasoft Advanced Folder Encryption, which is also good at encrypting files/folders on drive and hiding hard drive on computer. You can find it here: http://www.kakasoft.com/folder-encryption/
You can encrypt pictures using the Encrypt4all program.
The past tense of encrypt is encrypted.