There is a misunderstanding in the win xp system. Be careful to enter the trap

If you want to make your computer better, the best way is to optimize it according to the online tutorial. There are a lot of optimizations, setup strategies, tips, etc. on Windows XP and many magazines. For "classic", "Bible", but are these so-called techniques really useful? In fact, when we carefully identify these so-called "ultimate skills", we will find that many of them are not lost. responsible. Some techniques don't work but don't harm the system, but some tricks are even worse. These things have largely misled the users of windows xp and even brought them irreparable losses. "Practice is the only criterion for testing truth!" Today, let us uncover the mystery of these rumors and tell you what is the real solution.

Classic Misunderstanding 1: After forgetting the password, "High trick"

Classic level: ★★★★

Danger level: ★★★★★

1. Description of the wrong solution

When you are using Windows XP, accidentally forget the administrator password, what should I do? There is a popular method on the Internet: use DOS boot disk ( If the partition where windows xp is located is an NTFS partition, you need to support the NTFS DOS boot disk. Enter the DOS real mode and delete the file named sam in the %SystemRoot%system32config directory. Restart the system, the administrator login password is empty, we can easily log in to the system.

Tip: Windows NT/2000/XP manages user accounts using the Security Account Manager (SAM) mechanism, which manages accounts not by directly confirming usernames and passwords. Form, but by security identification (SID). The SID number is created at the same time as the account is created. Once the account is deleted, the SID is also deleted. The system's SID information is stored in the %SystemRoot%system32configsam file in the form of "SID s-1-5-21-xxxxxxxxxxxxxx-xxxxxxxxxxxxxx-005".

2. The origin and consequences of the program

This error method comes from the previous treatment of Windows 2000 forgotten passwords. Windows 2000 (without service pack) users forget the administrator password. This method can be used to successfully crack the login password. The theoretical support of the program is: Windows XP password is stored in the sam file. When we log in to the system, the system will automatically verify the sam database information. If the password and user name are found to match the encrypted data in the sam file, The system will log in successfully. Otherwise, you cannot log in. If the file is deleted, the sam database will be emptied, and the administrator's login password will be emptied. Naturally, the login password authentication mechanism of Windows XP can be escaped.

In fact, this method is invalid for Windows 2000 SP1-SP4, and it is useless for Windows XP. If you follow the scheme to operate windows xp, it will not be able to start, give us The operation brings more trouble.

3. The correct solution:

When the windows xp login password is lost, we can solve different situations for different situations:

(1) If When installing windows xp, the Administrator password is set to null. You can press F8 to enter the security mode when the system boots. The Administrator password is empty, you can enter it directly, and you can set the account and password after entering.

(2) If the Administrator password is set, the solution is not so simple, we can use the super Windows 2000/XP system maintenance CD & mdash; — ERD Commander 2003. After booting the system using the CD, run the "Start & Rarr; Manage & Rarr; Tools & Rarr; Password Change " command to open "ERD Commander 2003 LockSmith Wizard" window, enter the account name to be cracked in the "Account" box, Then enter the new password and it will be ok.

If you blindly use these optimization techniques, it is easy to get into the misunderstanding of the win xp system. It will be harmless to your system in the long run, so everyone should be cautious.