How the Win7 system uses the SYSKEY command to improve system security

the setting of double password protection

1, in the Start menu "run" input "Syskey", click OK;

2, this interface refers to the account database is the principle of NTFS encryption, for our general users, do not need to study the principle, we will use as long as good. Next click on "Update";

3, here we select the password to start, enter a password, and then click OK. Doing so will enable WinXP to enter a password more than once during startup, playing 2 times as a cryptographic function. The operating system starts at the usual time before we enter the username and password will appear window prompts "This computer requires a password to start, please enter a startup password." This is the first password protection we have just created.

　Second, the production of password floppy disk

1. If we choose "Save startup Password on floppy disk", this will generate a password floppy disk, no one can enter your operating system without this floppy disk. Of course, if you have previously set up the SYSKEY system startup password, you will also need to enter that password again in order to obtain the appropriate authorization, It's kind of like when we change the QQ password, we have to know the original password.

2. Then the system will prompt you to put a floppy disk in the floppy drive, when the password floppy generated will appear prompts.

3. Then we start the system again, then the system will prompt you to insert the password floppy disk, if you do not insert a floppy disk Click OK, the system will not give you release.

Insert password floppy disk, according to different accounts, enter a different password. At the same time, if you want, the key file in the password floppy disk can be copied to another floppy disk.

　Third, the removal of password floppy disk high security requirements

If one day, your operating system security requirements are not so high, and you are tired of every access to the system need to insert a floppy disk, how to do? Select "Save startup password on my Computer" and, of course, you have to have a floppy disk with a key in this step, This and the password floppy disk is required to enter the authorization password is a reason.