After saying that with the few tricks of Xiao Wangzhi, Xiao Zhang no longer has to worry about the computer security of the office. But a new question is quickly placed in front of him, and that is how to encrypt the mobile hard drive that is carried around every day? As everyone knows, mobile hard drives can't be passwords compared to desktop computers, and they are extremely easy to lose. Imagine the news that the XX company’s daily loss of the U disk in the newspaper caused the project to fall. So what good ideas does Xiao Wang have?
* BitLocker ensure safety
BitLocker originated in Vista, but flourish in Win7 era. Simply put, this component protects the hard disk data by a combination of soft and hard (BitLocker and hardware TPM chip). The biggest highlight is that even if the hard disk is connected to other computers, I would like to read a little bit of information. Compared with the Vista era, Win7 version of BitLocker can not only encrypt any partition, but also add encryption support for U disk and mobile hard disk, which is also called BitlockerToGo.
"such a complex operation, I can learn it?" Zhang can not help but express their concerns.
"Rest assured, every minute you can get." Having said Wang turn on the computer, began to enter the control panel to find a widget called "BitLocker Drive Encryption", and double-click BitLocker found that this is the headquarters of .
Win7 here all the columns including the hard disk drive letter, including, just find to be encrypted partition, followed by clicking "Enable BitLocker" to turn on encryption.
next logical operation, after a short wait, BitLocker began asking us how to encrypt. It can be seen that Win7 provides a total of two ways, one is the most common password encryption, and the other is the "Smart Card (TPM) Unlock" we mentioned earlier.
Because Chang's computer is not configured TPM (in fact, there is little domestic computer is equipped with this module), so Wang directly select the first password encryption. After entering the password, choose to save the key directly into a file, and the whole operation is completed successfully.
encryption process does not require user participation, but the speed is not fast. Don't look at Xiao Wang's demonstration when using a small 512MB USB flash drive, which took nearly 2 minutes. After completion of
encryption, BitLocker officially launched protection. At this time, if you plug it into another computer (including the machine), the dialog box shown in Figure 4 will pop up first, and the U disk file can be read after inputting the correct password.
compatibility Needless to say, not only can be opened by the U disk encryption BitLocker in Vista, Win7 system, and it can also be used in the XP system. So do you think it is more troublesome to enter a password on your computer each time? It's very simple. Just check "Automatically unlock on this computer from now on" when unlocking. In the future, as long as the USB flash drive is plugged into this computer, BitLocker will automatically unlock the trouble of manually entering the password. Of course, the automatic unlocking here is only for this computer, and it will be protected by the key when placed on other computers!
[Editor's note] to bring BitLocker, very reminiscent of the familiar EFS encryption, in fact, the difference is still very large. The focus of EFS is to protect individual files (folders), and users can encrypt a file (folder) separately. BitLocker prefers the protection of the entire drive. If you don't have the correct password, you want to read anything in the drive.