Windows XP acceleration settings

Hardware optimization

1. memory performance optimization

Windows XP has several options to optimize memory performance, all of which are in the Registry: hkey_local_machinesystemcurrentcontrolsetcontrolsession managermemory Management

1) Disable paging Executive)

Under normal circumstances, XP will write fragments in the memory to the hard disk. We can prevent it from doing so and keep the data in the memory to improve system performance. Note that users with a lot of memory (more than MB) can use this setting. The name of this setting is called "disablepagingexecutive" just like its function ". Change its value from 0 to 1 to disable Memory Page scheduling.

2) Improve the system cache: Change the largesystemcache key value from 0 to 1, and Windows XP will allocate all the system memory except 4 MB to the file system cache, this means that the XP kernel can run in the memory, greatly improving the system speed. The remaining 4 MB of memory is used for disk caching. XP will allocate more memory when required under certain conditions. In general, this optimization will greatly improve the system performance, but it may also make some applicationsProgramReduced performance. As mentioned above, largesystemcache must have a memory of more than MB. Otherwise, do not change it.

3) input/output performance: Is this optimization only meaningful to server users ?? It can improve the system performance for large-capacity file transfer. By default, this key value does not exist in the registry. You must create a DWORD (dubyte value) key value and name it iopagelocklimit. Most people found the best performance between 8 to 16 M bytes when using this optimization, can be set to allow the master of the key, the master of the master node, the master node? 2 m, that is, 12*1024*1024, that is, 12582912. Like the above memory optimization, the value here can be changed only when your memory is larger than MB.

2. Enable DMA: Select ide ATA/atapi controllers from the device administrator, go to the advanced settings in primary/secondary ide channel, and set all the forwarding modes to use DMA (if available ), the system will automatically turn on the DMA support (you should first set it to support DMA in the BIOS)

3. Disable the auto-start (Autorun) function of the optical drive in XP.: Open: My computer, under mobile storage devices, right-click the CD-ROM drive, and then click Properties to see the auto play tab? Change it by yourself.

4. Set CPU: Windows XP cannot automatically detect the second-level slow storage capacity of the processor. We need to manually set it in the registry. First open the Registry (enter "Regedit" during running) and open it:

Hkey_local_machinesystemcurrentcontrolsetcontrolsession managermemory management, select "secondleveldatacache" and set it based on your processor. For example, piII Coppermine/P4 Willamette is "256", and athlon XP is "384 ", p4 Northwood is "512"

5. When installing the driver in XP, a window is often displayed, saying that the program has not been verified by Microsoft. Can we go to the control panel ?? System ?? Hardware ?? Device administrator ?? Driver signature. Have you seen the options? Do you know what to do.

6. Prioritize IRQ interrupt requests

Each major component of the computer has an IRQ interrupt number. Here, we need to optimize each IRQ request by modifying its priority. The main optimization object here is the system/CMOS Real-time clock, which improves performance through the motherboard. First, determine which component you want to achieve higher performance, and then find the IRQ interrupt number that the hardware is using. How to find it? Open the system properties in the control panel (you can also press the Windows + break hotkey combination on the keyboard to open it ). Select the hardware tab and click the Device Manager button. Right-click the component for IRQ check, select "properties", and click the "Resources" tab. Here we can see the IRQ interrupt number that the device is using (if there is no IRQ interrupt number, select another device ). Write down the interrupt number, Run registry editor regedit, and find the hkey_local_machinesystemcurrentcontrolsetcontrolprioritycontrol position in the registry. Here we will create a DWORD dubyte value named IRQ # priority (where "#" is the specific IRQ interrupt number), and set its value to 1. For example, the IRQ interrupt Number of the CMOS Real-time clock in my system is 8, and the key name I want to create is irq8priority. After restarting the computer, you will find that the performance of the optimized components has improved. I strongly recommend using this method to optimize the system CMOS Real-time clock, because it can improve the performance of the entire motherboard. Of course, you can also increase the priority of multiple IRQ interrupt numbers, but the effect is not so good and may cause system instability. To undo this optimization setting, you just need to delete the registry key value you just created.

Iii. Network Optimization:

1. Accelerated sharing: This is a great optimization. before finding this optimization, I often break my head in a long wait window to show the shared directories on other hosts. Generally, when Windows XP is connected to another computer, it will check all the scheduled tasks on the other computer ?? This is really redundant, and it will keep you waiting for 30 seconds. It's so bad. Fortunately, this process can be easily disabled. First, find hkey_local_machinesoftwaremicrosoftwindows/current versionpolicerremotecomputernamespace in the registry. Here, there should be

The {D6277990-4C6A-11CF-87-00AA0060F5BF} key. You just need to delete it. After restarting the computer, Windows will no longer check the scheduled task, and the speed will be significantly improved!

2. Solve the pause problem during WINXP execution

Start ?? Network connection ?? Local Connection, right-click, select Properties, select "Internet Protocol (TCP/IP)", click Properties, and use the following IP Address: 192.168.0.1, subnet mask: 255.255.255.0, after the boot, the system will not pause.

3. How to enable XP to automatically connect to the Internet:

IE ?? Tools ?? Internet Options ?? Connect, select 'dial when the network does not exist ', and pull IE to 'start'

After each boot, you are online! Another method is as follows:

Go to the link content, deselect the "prompt name, password, credential, etc.", and then pull the line to "start" (blues Note: it is estimated that the original author is from Hong Kong and Taiwan, different languages. Because I use broadband to access the Internet, it is unclear what is simplified Chinese. A friend who has successfully modified the post can easily modify the post .)

4. By default, xp pro retains 20% of the bandwidth of a network card.. The modification method is to log on with the Administrator permission and start the menu ?? Run ?? Type gpedit. MSC. In the "Group Policy" window, expand "network" in the "management template", expand "QoS packet scheduler", right-click "restrict retained bandwidth" in the right window ', in the "Settings" field, select "enable", and select a value in the "Bandwidth limit" column below. you cannot select 'disable' because, in this case, the system will think that you have accepted the 20% reserved bandwidth. For details about the modification, refer to "Description" next to "attribute. After the preceding modification and application are completed, you can see 'qos packet scheduler (QoS packet scheduler) 'in the general attribute label bar in the Properties dialog box of the network connection )'. The home version does not support this operation and cannot be removed!

5. XP has a built-in firewall, Which is disabled by default.. For more information about how to set the firewall, see "set up firewall comprehensively ".

Iv. Weight Loss in the partition where the XP system is located.

1. Delete the system file backup sfc.exe/purgecache (which is rarely used by users)

2. Delete the driver. cab file under the windowsdriver cachei386 directory (73 MB)

3. cancel system restoration (in general, the system restoration function is good. We recommend that you use other disks except the disk installed in xp. If the disk space on the day is insufficient, you can use the system cleanup program to delete some early recovery points)

4. Delete the Help File (more than 40 MB reduced) (the size of the file using the Chinese character package is 92 MB. Do not delete the file when you are using xp)

5. delete the file under windowssystem32dllcache (minus 200 ?? 300 MB ). (This is a backup DLL file. You can do this if you copy the installation file. In this case, you have nothing to say)

6. convert my documents and temporary ie folders to other disks (partitions ). (Both the system speed and the hard disk are good. If you are using a dual system, you 'd better put the IE temporary files of both systems in the same folder, this will speed up and save space)

7. Convert the virtual memory to another disk. (That is, place these files in a Small Partition during temporary download, which facilitates hard disk sorting)

8. Install the application software on other disks (this is also good for reinstalling the system and can save a lot of trouble ).

9. Delete input methods not used in windowsime! (Japanese, Korean, traditional Chinese Input Method, 84.5 MB) (which one should I study! Sometimes you have to move your mind. Exercise it !)

10. If you use NTFS to install XP, it will save space.

V. Others

1. Activation display:

After the instance is started, open the running bar in the Start menu and enter oobe/msobe/.

If "Windows product enabled" appears, it indicates that Windows is enabled.

2. Create a DOS Boot Disk:

Right-click "3.5 floppy disk", select format, and then select "Create a MS-DOS boot disk"

3. Solve the task bar crash (authoritative elimination of QQ, ie and other causes of Task Bar crash)

Control Panel '-?? 'Region and language options '-?? 'Linguistic '-?? 'Details': In the pop-up 'settings window ', select the 'language barri' in 'prefers' to close "display the language barrier on the desktop ", check the third 'show other language bar icons in the notification region' check box. If you do not need handwriting recognition or speech recognition, you can also select the last option 'Disable advanced text service '.

4. Compatibility of some software (applicable to Home Edition 'homeversion' and Professional Edition 'professional ')

If QQ is suspended and some other programs cannot run normally under XP, you can find the execution file of the program, right-click it, and select the 'compatibility 'label in the pop-up dialog box, select the required runtime environment in 'compatible mode.

5. How to uninstall XP on a dual Operating System

Start with the boot disk, type "A: sys c:", restart the disk, and delete boot. INI, bootsect. dos, ntdetect.com, ntldr, and then delete the windows, program files, Documents and Settings directories of XP directly, or format the WINXP hard disk (If your XP and Win98 are not in one partition)

6. Determine whether XP is a Chinese official version.

Open the installation folder i386, find setupp. ini, and open it in Notepad. if the content is:

If it is the same as the following, the English version of corpfiles patch is used.

[Pid]

Extradata = 796674721377656d7a622e000092a4

PID = 1, 55274270

Currently, the outbound content of setupp. ini for the Chinese Enterprise Edition is

[Pid]

Extradata = 766e74737a7b787061627428828710

PID = 1, 55394270

7. Online update cannot be upgraded.

Add the last line in C: windowssystem32driversetchosts

207.68.131.21www.download.windowsupdate.com can be upgraded online. The modified file is like this.

# Copyright (c) 1993-1999 Microsoft Corp.

#

# This is a sample hosts file used by Microsoft TCP/IP for Windows.

#

# This file contains the Mappings of IP addresses to host names. Each

# Entry shoshould be kept on an individual line. The IP address shold

# Be placed in the first column followed by the corresponding host name.

# The IP address and the host name shocould be separated by at least one

# Space.

#

# Additionally, comments (such as these) may be inserted on individual

# Lines or following the machine name denoted by a' # 'symbol.

#

# For example:

#

#102.54.94.97 rhino.acme.com # source server

#38.25.63.10 x.acme.com # X client host

127.0.0.1 localhost

207.68.131.21www.download.windowsupdate.com