Five things in Win7 BitLocker encryption

Starting with “XX Doors”, how to encrypt important files has become a concern of many friends. I have introduced many methods to encrypt using third-party software, but most third-party software encryption does not. How is it? Starting from Vista, Microsoft provides a system called BitLocker with its own encryption function. In Windows
7, this function is more complete, simple to use, and the encryption effect is very good, especially on mobile devices.

Turning on BitLocker Encryption

In general, right click on any partition letter and you will see the "Enable BitLocker" button. If it's a lite system, try opening the “ShellHWDetection” and “BDESVC” services in the system service.

Save the recovery file

Follow the prompts to set the encryption settings step by step. Generally, you can choose to use password encryption. In particular, we need to save the recovery password to non- Encrypted partition file, and can not be saved in the root directory. And be sure to remember to save the location and avoid forgetting your password.

Encryption speed is very slow

The speed of encryption is related to the
computer
configuration and the transmission speed of mobile devices. I am a computer



>, the main frequency 2.66GHZ, 1GB memory configuration, encrypt a 4GB, write an average speed of 3MB /S NTFS format U disk, the time is about 25 minutes.

Tips: How to restore the partition lock

The BitLocker function is enabled. After unlocking and then closing, you can no longer automatically lock. That is, you don't need to enter the password to access it. The security is relatively poor. How can I enter the password every time I open it? Just run CMD with administrator privileges, enter “manage-bde space-lock S:”, where S is the name of the partition to restore the lock.

Turning off BitLocker Encryption

There are two ways to do this to cancel BitLocker encryption.

The first type: enter the Control Panel's "BitLocker Drive Encryption" option, where you can view the encryption status of each partition, click "and close" BitLocker", first unlock the partition, then In order to close BitLocker, it should be noted that the shutdown time is as long as the encryption time.

Second: If you feel that the time spent is too long, you can decrypt the partition first, then copy all the files in the encrypted partition to another unencrypted partition, and then set the encryption before. Space can be formatted.

How to use the encrypted U disk under XP

If the encryption is a U disk, if you want to continue to use it in XP, then the file format of this U disk can only be FAT32. If the U disk file format is NTFS format, after inserting the XP system (SP3), the disk will be prompted not to be formatted, but it cannot be formatted at this time, otherwise the data will be lost after formatting.

U disk with FAT32 format can be used under XP. Inserting U disk will display a icon with lock. After double-clicking, you will be prompted to enter the password before you can access it. It is very worth noting that after unlocking, an interface called “BitLocker To Go Reader” will pop up, and all encrypted files can only be viewed in this reader. At this time, the U disk is read-only, and the content inside can only be read and cannot be written. For friends who often use U disk in different places, this function is very intimate and can guarantee the security of the U disk.