Five Things to Know About Win7 BitLocker Encryption

From the "XX door", how to encrypt important files has become a concern of many friends. I have introduced many methods of using third-party software for encryption, but most third-party software encryption is not effective. How is it? Starting with 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. It is very convenient to use 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 is a lite version of the system, you can try to open the "ShellHWDetection" and "BDESVC" services in the system service. Save the recovery file Follow the prompts, step by step to set the encryption settings, generally choose to use password encryption, the extraordinary need to pay attention to is that we need to save the recovery password to the non-encrypted partition file, and can not be saved in the root directory under. And be sure to remember to save the location and avoid forgetting your password. The encryption speed is very slow. The speed of encryption is related to the computer configuration and the transmission speed of the mobile device. In the case of a 05-year-old computer, the main frequency is 2.66GHZ, 1GB memory configuration, one 4GB is encrypted, and the average writing speed is 3MB/S's NTFS format U disk, which takes about 25 minutes. Tip: How to restore the lock of the partition Open the BitLocker function, unlock and then close, you can not 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 and enter “manage-bdespace-lockS:”, where S is the name of the partition to restore the lock. Turning off BitLocker Encryption To cancel BitLocker encryption, there are two ways to do this. The first type: enter the Control Panel's "BitLocker Drive Encryption" option, where you can view the encryption status of each partition, click “ close BitLocker”, you must unlock the partition before you can close BitLocker, you need to pay attention to The time to turn off is as long as the encryption time. Second: If you think 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 format the previously set encrypted space. . How to encrypt the U disk in XP If the encryption is a U disk, if you want to continue to use it in XP, then the U disk file format can only be FAT32, if the U disk file format is NTFS format, insert XP system (SP3) will prompt the disk is not formatted, but can not be formatted at this time, otherwise the data will be lost after formatting. A USB flash drive in FAT32 format can be used under XP. When you insert a USB flash drive, an icon with a lock will be displayed. 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 “BitLockerToGo 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.