Going out of the mistakes and punctuating XP's classic rumor

online and many magazines have a lot of Windows XP optimization, setup strategies, skills, etc., many are regarded as classics, the Bible, in fact, when we carefully identify these so-called ultimate skills, we will find Many are irresponsible. These things have largely misled Windows XP users and even brought them irreparable damage. 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: The trick after forgetting the password

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 the DOS boot disk (if the Windows XP partition is an NTFS partition, you need to support the NTFS DOS boot disk) into the DOS real mode, 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 NT2000XP manages user accounts by using the Security Account Manager (SAM) mechanism. This mechanism manages accounts not by directly confirming the username and password. Made 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 the installation of the 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, which naturally escapes the Windows XP login password verification mechanism. In fact, this method has no effect on 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, which will bring more operation to our operation. 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 2000XP system maintenance CD - ERD Commander 2003. After booting the system using the CD, run the Start→Manage→Tools→Password Change command to open the ERD Commander 2003 LockSmith Wizard window, enter the account name to be cracked in the account box, and enter the new password.

Tips:

★ ERD Commander is shareware, its official homepage is: httpwww.winternals.com, ERD Commander 2003 Chinese version of the ISO file download address is: httpsoft.0zones. comSoftDown.ASPID=21081, you can buy a boot CD with integrated ERD Commander.

Classic Misunderstanding 2: Startup Progress quot; Secrets of only one lap

Classic Level: ★★★★★

Danger Level: ★

1. Description of the wrong solution

(1) Right click on my computer, select the Properties menu to open the System Properties Settings window, switch to the Advanced tab, click Settings in the Startup and Recovery Bar, and pop up Click the Edit button in the window and change the fastdetect in [Operating systems]multi(0)disk(0)rdisk(0)partition(1)WINDOWS=Microsoft Windows XP Professional fastdetect to nodetect.

(2) Using Microsoft's acceleration software Bootvis can speed up the Windows XP startup process. The method is as follows: After downloading the software, run the Tools→Options command, set the Symbol to the installation path of Bootvis, and click Save. Then run the Trace→Next Boot command to open the Trace Repetitions window, click OK to
2. The origin and consequences of the scheme

The first "optimization" method is quite funny, you can try to use Google in Google. "nodetect" searches for keywords, and most of the pages obtained are "Windows XP Optimization Tips" page reprinted on Chinese websites. It is reasonable to say that such a magical optimization technique cannot be mentioned in foreign sites. In fact, the answer lies in the fact that this parameter is purely "flawless" and I really don't know which one of the first domestic inventors invented this trick. Although there is no problem with the system after the modification, it is absolutely nonsense or psychological effect to achieve the "optimization" effect.

The second method mentioned by Microsoft's Bootvis, in fact, the role of this free software is to visualize the performance of the system startup, developers can use this tool to track system startup or wake up problems .

Tip: Microsoft official has clarified the rumor about "Using Bootvis to speed up system startup", and has stopped supporting the technology of the tool, you can refer to

3. The correct solution:

For the method of modifying the boot.ini file mentioned in the first optimization method, the default should be kept, that is, the parameter is "/fastdetect", which indicates that the system is The serial mouse is not detected during startup. In addition, the following methods can also be tried:

(1) If you are using the Intel chipset motherboard, you can install Intel's program acceleration package - Intel Application Accelerator, which is available at: U>http://aIEdownload.intel.com/df-support/4857/a08/iaa23_multi.exe
and upgrade your motherboard driver to the latest version. If you are using the nForce chipset, install its latest 3.43 integrated driver.

(2) In BiOS, set the device (such as Modem) that is not used normally to "Disabled". If your machine has multiple IDE devices, open the device manager and find the "Main IDE Channel" and "Secondary IDE Channel" under the "IDE ATA/ATAPI Controller" section, respectively in the "Properties" window. The "Device Type" of the IDE device will not be set to "None" under the "Advanced Settings" tab. This way the system will not waste time on the hard disk that is not found on the IDE channel at startup.

(3) Run the MSconfig command to remove unnecessary startup items. The author's setting is to cancel all startup programs, you can adjust according to your own situation.

(4) manually set the IP address of the network card, many friends reacted after entering Windows XP, the system will "fake death" for a few minutes, in fact, this is because the system is searching the DHCP server on the network, by manual Setting the IP address of the network card can effectively solve this problem.

(5) In addition, regular disk defragmentation, close unnecessary system services, and organize the registry can speed up the system startup.

Tip: ★ Windows XP will use the system BIOS SBF (Simple Boot Flag) to speed up the boot process, if your motherboard BiOS supports SBF, XP boot will be much faster.
★ There is a more classic trick: in the registry editor "[HKEY_LOCAL_MacHINE\\SYSTEM\\CurrentControlSet\\Control\\Session

Manager\\MemoryManagement\\PrefetchParameters]", will be named EnablePrefetcher The DWord key is set to "1". The optimization principle is to use the system's pre-read technology

(Prepatch). When set to "1", the system only pre-reads the application part at startup, which can make the progress bar of Windows XP run less. A few laps, you can obviously feel the effect by using this method. But in fact, the total startup time of the system will not be reduced or even longer, so please use this technique with caution. The other parameter settings for "EnablePrefetcher" are: 0 - no pre-read function, 2-- pre-read boot part, 3-- pre-read start and application part.

Classic Misunderstanding 3: One-of-a-kind, the network "Fly"

Classical level: ★★★★★

Danger level: ★

1. Wrong Solution Description

Run the "Gpedit.msc" command to open the Windows XP Group Policy Management window, and then navigate to the "Computer Configuration → Administrative Templates → Network → QoS Packet Scheduler" item and double-click " Limit the reserved bandwidth", check the "Enabled" button and set its value to "0%".

2. The origin and consequences of the program

This network optimization technique is purely "individual". QoS (Networked Quality of Service) refers to the various technologies
of various communication or program types applied across the entire network connection. Microsoft experts pointed out: "Like Windows 2000, in Windows XP, programs can also utilize QoS through the QoS Application Programming Interface (API). All programs can share 100% of the network bandwidth, except for programs that require bandwidth priority. Other programs can also use this "reserved" bandwidth, except for the requestor that is sending data. By default, the program reserves a bandwidth that is up to 20 percent of the basic link speed of each interface on the terminal computer. The amount of data sent by the bandwidth program does not completely run out of bandwidth, and the unused portion of the reserved bandwidth can be used for other data streams on the same host." That is, if we do not need to manually disable this part of the reserved bandwidth, the system will automatically allocate the remaining The bandwidth is given to the corresponding program to access the network.

3. The correct solution

In fact, the speed of the network is mainly determined by the bandwidth provided by the ISP. Many softwares use the banner of "Let your network speed multiply". Don't believe it.

Classic Misunderstanding 4: Virtual Memory is the most "scientific"!

Classic level: ★★★★★

Danger degree: ★★

1. Description of the wrong solution

(1) In "I "Computer" Properties window, switch to "Advanced → Performance → Virtual