System security: Win XP SP2 configuration and troubleshooting techniques revealed

This article mainly talks about some of the problems that Windows XP SP2 may encounter during use, and I have given a solution. 1. Retrieving the lost IE image verification code After installing SP2, most users find that they cannot display the verification code picture (shown as a red cross) when accessing some verification codes that need to be filled in. This is a very serious BUG. The solution is: run the "Regedit" command to open the registry editor, and then navigate to "[HKEY_LOCAL_MacHINESOFTWARE
MicrosoftInternet Explorer
Security]", and create a new REG_DWord value named "BlockXBM" on the right side of the window, and set its value. Set to "0" (hexadecimal value).

2. Solve the problem of slow download speed of BT

Many friends found after installing SP2: If you open BT download file, either BT is obviously slower, or the speed is very slow when you open the webpage again, even appearing " Unable to open webpage" issue. This is because the SP2 default setting limits the number of TCP simultaneous connection requests to less than 10. Currently, we can solve this problem in two ways:

Method 1: Turn off the anti-virus software. Turning off anti-virus software can alleviate this problem to some extent, but for system security, I don't recommend this method.

Method 2: Modify the tcpip.sys file. We use Winhex (the download address is: http://JS-http.skycn.Net:8180/down/HA_WHex11_2SR1_ZQ.rar
) to complete the modification work, the specific method is as follows: First, the C: WINDOWSSYSTEM32DRIVERS directory Copy the tcpip.sys file to another directory, open the backup file with Winhex, and locate the "00000130" and "4F322" lines in the offset column, respectively, and the original values ​​"6E 12 06 00", "0A 00 00 00 "Modified to "62 13 06 00" and "FE FF FF 00" respectively. After saving, copy the files in the safe mode to overwrite the files with the same name under C:WINDOWSSYSTEM32DRIVERS, C:WINDOWSSERVICEPACKFILESI386, C:WindowsSYSTEM32DLLCACHE folder. It is worth noting that the above is the modified data of SP2 2180 version. For other versions, the modified data values ​​are different. You can refer to http://www.lvllord.de/4226fix/4226fix-en-manual The data provided in the table in .htm
.

Tip: You can also directly use a patch made by a foreign master (applicable to most popular SP2 versions), first copy the tcpip.sys file to a directory and download the patch (download address: < U>http://www.lvllord.de/4226fix/EvID4226Patch20c.exe
), put it in the directory where tcpip.sys is located, run it, restart the computer after the completion, and finally copy the tcpip.sys file to the same In the above three folders.

3. Let Style XP come back to life

Many friends are using Style XP to beautify the system, but after installing SP2, Style XP can not be used. There are two solutions, we can download the latest version of Style XP, download address: http://www.tgtsoft.com/download.PHP
, you can also use the method of modifying uxtheme.dll: Copy a copy of uxtheme.dll under %systemroot%system32, open the copy with UltraEdit, and change the value of the "0001BB8C" line of the Offset column from the original "81 EC 88 00 00 00 A1 18" to "33 F6 8B C6 C9 C2 08 00” is OK.

4. Modify the default security level of IE

Many friends found that after installing SP2, when we modify the security settings of IE below its default setting, the system will prompt "cannot modify... "The error, this is due to SP2's restrictions on the user's lower security level. However, this may cause us to fail when accessing certain sites. We can modify its default security level by running the "Regedit" command to open the Registry Editor and then navigate to "[HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet SettingsZones3]" on the right side of the window. Change the "MinLevel" to "10000" (hexadecimal) so that everyone can set a lower security level.

5. Let Maxthon use SP2's pop-up window control function

After upgrading SP2, IE has added pop-up blocking function, which allows us to intercept most pop-up ads very conveniently. It's so strong that even Maxthon's windows that can't be filtered can be blocked. But this feature can only be implemented in IE. If you want to call this function in Maxthon, GreenBrower and other IE core multi-page browsers, just change the Maxthon.exe file name in the Maxthon installation directory to IExplore.exe is all right. It should be noted that after the name change we need to set Maxthon as the default browser again.

6. Let the system tray not display "Windows Security Alert"

Windows Security Alert will pop up the prompt bubble when you turn off Windows Firewall, firewall software is not installed, automatic update is not enabled, etc. Window, we can open the Security Center component in the control panel, click "Change 'Security Center' to inform me" on the right side of the window, uncheck "Firewall", "Automatic Update", "Virus Protection".

7. Uninstall SP2 in two ways

There are two ways to uninstall SP2: 1. Uninstall in the Add and Remove Programs component of the Control Panel; 2. Run the "CMD" command to enter the command prompt. In the window, enter the following command:
cd %Windir%$NtServicePackUninstall$Spuninstspuninst.exe Follow the prompts.