Why is my computer very slow?

I. BIOS Optimization

1. How to enable the Quick Start self-check function

After the computer is started, the system performs a self-check routine, called post-power-on self-test, to detect almost all of the system's hardware. To enable the quick self-check function, follow these steps.

Step 1 start the computer and press del to go To the BIOS settings page.

Step 2 select "Advanced BIOS features" (Advanced BIOS settings) and press Enter.

Step 3 move the cursor to the quick power on self test item and set it to enabled ). If "disabled" is selected, the computer will perform the boot self-check at normal speed and detect the memory three times.

Step 4 Press ESC to return to the main interface, move the cursor to save & Exit setup (save and end settings), and press y to save and exit.

2. How to disable the soft drive Detection Function

Step 1 enable the boot up floppy seek (BOOT soft drive detection) function will enable the system to detect a MB soft drive at startup, resulting in a delay of about 1 to 2 seconds. To speed up the startup, you can disable this function.

Step 2. Start the computer and press del to go To the BIOS settings page.

Step 3. Set "boot up floppy seek" to "disabled" to disable the soft drive detection function.

3. How to set the hard disk as the first boot disk

In the bios, you can choose a variety of boot methods, such as floppy disk, hard disk, CD, and USB disk. But in general, it is started from the hard disk. You can set the first boot disk in the BIOS settings. you can skip the detection of the disc in the optical drive to speed up the boot.

Step 1. Start the computer and press del to go To the BIOS settings page.

Step 2 select "Advanced BIOS features" and press Enter.

Step 3 set "first boot device" (the first device that is preferentially started) to "HDD" or "Hard Disk". You can speed up the boot and start the system from the hard disk. If you want to start a disk, set "first boot device" to "Floppy ". if you want to enable it through a cd (such as installing the operating system from the CD), set it to "CDROM.

4. How to disable USB settings for startup
Legacy USB storage detect (USB storage device detection at startup)
Location: Integrated peripheral (Integrated peripheral settings)
Options: "Disable" and "enable )"
Function Description: After this option is enabled, the system checks whether the USB interface is inserted with a storage device, such as a USB flash disk or a USB mobile hard disk. Disabling this option can speed up self-check during system startup.
We recommend that you set "Disable )". It is believed that few people will start the operating system from the USB flash drive or USB mobile hard drive, so disabling this function will not have any impact. Note that this does not mean that USB flash drives cannot be used in windows.
5. How to disable the S. m.a. R. T function of the hard disk?
S. m.a. R. T (Self Monitoring Analysis and Reporting Technology), jointly developed by quantum and Compaq, is a technology formally proposed in ATA-3 standards. Using the S. m.a. R. T technology, you can effectively predict potential hard disk faults and improve data security. The switch status of S. m.a. R. T can be set in bios. This function takes some time to display the startup status of S. m.a. R. T during startup. If you are more comfortable with your hard disk, you can disable this function. The procedure is as follows:
Step 1 start the computer and press del to go To the BIOS settings page.
Step 2 select the "Integrated peripherals" setting and press Enter.
Step 3 set the "hdd s. m.a. R. T. Capability" setting to "disabled" to disable the hard disk S. m.a. R. T function.

Ii. Optimization of the stop time of startup information (that is, the timeout value in Boot. INI)

During Windows XP startup, you must call 'operating system list '. We can optimize the display time of the operating system list to speed up system startup. This is relatively simple. You can enter start --> Run --> msconfig, click the boot. ini option, change the timeout value to 5 or 3, and restart the computer. Or right-click my computer --> properties --> advanced --> Start and fault recovery --> set to change "display OS list time" to 5 or 3, make sure the restart takes effect. If only one operating system is installed on your computer, you can skip it at startup to save time. The specific method is: In the 'start and recover failed' window, cancel the check before 'display OS list time' and 'display recovery option time. It cannot be changed through optimization software, such as the windows optimization master.

3. Random Startup Program Optimization

What is a random Startup Program? A random Start Program is a program loaded at startup. The random startup program not only slows down the startup speed, but also consumes computer resources and memory more quickly.

In the Windows XP system, you can enter msconfig in "run" to call the "System Configuration Utility" to terminate the random Startup Program of the system. You can also use some optimization software. We recommend that you use Windows optimization masters, provides the export, restore, and add functions.

Optimization is to remove all items that you want not to load at startup. General Reserve ctfmon.exe (input method), soft processes, camera processes can be killed, all other can be killed.

4. Reduce the number of XP scroll bars

1. Modify the Registry

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management \ prefetchparameters \ enableprefetcher changes its default value "3" to "1 ".

2. Disable hard disk search

Right-click "my computer-properties", click "hardware", and then click "Device Manager" to open "Ide ATA/ATAP controller" (slightly different chips ), then go to the Primary and Secondary ide channels and select "Advanced Settings ", here, find the item "Current transfer mode" is "not applicable" (this is the corresponding to the idle ide channel) and set the "device type" of this item to "NONE ", OK. Note: If you use the via chip motherboard, you must not modify the "via bus master ide controller" option.

Recommended settings: For most common users, only one hard disk and one optical drive will be installed on the entire device, and the unused SATA and IDE channels can be completely disabled, only pay attention to the need to reset the hard drive or optical drive in the future. This can also be achieved by setting BIOS. See the following:

IDE/SATA channel 0/1 Master/Slave (IDE/SATA 0th/1 channel Master/Slave settings)
Location: Standard CMOS features (Standard coms options)
Options: "NONE", "Auto", and "Manual (manual )"
Function Description: it is used to tell the system whether the IDE/SATA channel is connected to the drive (hard disk or optical drive) each time it is started ). If it is set to auto, it will take 2 seconds to start each time ~ 3 seconds for detection.

5. Nic settings Optimization

By default, Windows XP performs self-check on network devices such as NICs when it is started. If an improper Nic is set, the system starts slowly. The default "automatically obtain IP Address" enables the system to constantly search for DHCP servers in the network during startup until the IP address is obtained or the system times out, which not only affects the start time, but also causes a yellow exclamation point for the local connection, "restricted or not connected" is displayed, so it is best to specify an IP address for the network adapter, "network connection → local connection → properties → Internet Protocol (TCP/IP) properties → use the following IP address, configure the IP address of the network adapter as an unused value in the public network (the default gateway is 192.168.1.1), for example, 192.168.1.x. The value of X is between 2 and 2 ~ The value between 255 and the subnet mask is set to 255.255.255.0. The default gateway and DNS can be set by default. If your computer does not need a nic, simply unplug it.

Note: For ADSL virtual dialing, make sure that the IP address of the ADSL modem is in the same network segment, and the subnet mask is default (after the IP address is specified, the subnet mask can be set with a mouse click ). When setting, Enter cmd in start ---> Run, enter the Command Prompt window, Type ipconfig/All, and view the relevant network address for configuration.

Vi. desktop icon Cache Optimization

The XP system uses an area called the Icon cache to save the created shortcut icon. When refreshing the desktop display, you do not need to create a new one. You only need to read it from the cache, in Windows, the default cache size is small (32 KB). A large number of shortcuts are created, which exceeds the cache storage range and affects the display speed. To speed up the display of Windows systems, you can streamline the desktop icon and expand the Icon cache, so that you can avoid the time delay caused by slow or chaotic display of desktop icons, and speed up the system boot speed. It can be achieved through the windows optimization master. System Optimization ---> desktop menu optimization ---> desktop Icon cache. Click optimize after increasing the cache. Remember to restart.

You can also change it in the Registry: Increase the Icon cache size in the registry. First Open Registry Editor and find [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer]. create a DWORD Value named "Max cached icons" in the right pane. For example, set it to "2018" (note: the maximum value is 4096) and restart the system.

7. Cancel "automatic searching for network folders and printers"

Go to "my computer"> Tools> Folder Options> View> cancel the "automatically search for network folders and printers" check box.

8. Expand the virtual memory capacity.
If your hard disk is large enough, open "system" in "Control Panel", enable "Virtual Memory" in "performance" options, and select the second item: you can set the virtual memory settings on your own to point to a hard disk that is rarely used, and set both the maximum and minimum values to a fixed value. The size is 1.5 ~ of the physical memory ~ About 2 times. In this way, when a hard disk is used in a virtual environment, you do not have to consider the differences between the size and size of the disk, but use the fixed space as the virtual memory to speed up access. It is best to set the virtual memory after "disk fragmentation", so that the virtual memory is in a continuous, non-fragment file space, can better play a role.

9. Clear junk files

Save the following text as a batch processing file. Execute the command to clear system garbage and speed up startup!

@ Echo off
ECHO is clearing the System junk file. Please wait ......
Del/f/S/Q % systemdrive % \ *. tmp
Del/f/S/Q % systemdrive % \ *. _ MP
Del/f/S/Q % systemdrive % \ *. Log
Del/f/S/Q % systemdrive % \ *. GID
Del/f/S/Q % systemdrive % \ *. Chk
Del/f/S/Q % systemdrive % \ *. Old
Del/f/S/Q % systemdrive % \ recycled \*.*
Del/f/S/Q % WinDir % \ *. Bak
Del/f/S/Q % WinDir % \ prefetch \*.*
RD/S/Q % WINDIR % \ Temp & MD % WINDIR % \ Temp
Del/f/Q % USERPROFILE % \ cookies \*.*
Del/f/Q % USERPROFILE % \ recent \*.*
Del/f/S/Q "% USERPROFILE % \ Local Settings \ Temporary Internet Files \*.*"
Del/f/S/Q "% USERPROFILE % \ Local Settings \ temp \*.*"
Del/f/S/Q "% USERPROFILE % \ recent \*.*"
Echo system LJ cleared!
Echo. & pause

Or use the cCleaner software to clean up the garbage.

10. Hardware and driver upgrades

If the above method does not satisfy you with the XP startup speed, please upgrade your computer hardware! The hardware has a great impact on the boot speed of the XP system, and this influence is even absolute. Don't throw bricks ~~

Someone may ask which part determines the computer's speed. Computer speed is a comprehensive indicator, not determined by that component. The higher the CPU clock speed, the faster the computer. The computer speed is mainly determined by factors such as the CPU clock speed, hard disk speed, memory access speed, memory and memory size. No matter which one becomes a "bottleneck", the overall speed of the machine will be reduced. Therefore, each part of some high-end servers has been strictly selected and tested to ensure the overall speed of the machine.

If the hard disk transmission rate has a great impact on the boot speed, it is best to upgrade to sata2.5 or even SCSI for money. If it is an IDE hard disk, enable DMA.

Motherboard and driver-this is often overlooked by users. In fact, after installing the operating system, we should install the driver of the motherboard, for example, the intel chipset's "inf" file and Intel's proud chipset acceleration software "Intel application accelerator ". After installation, the system optimization effect is very obvious, which not only accelerates startup, but also plays a significant role in optimizing the performance of the entire system.

In addition, CPU, memory, Fan and other hardware will also affect the computer startup speed, which is beyond doubt. Haha, it seems a little biased.

Finally, we should not use the soft bootvis.exe tool to optimize the startup speed, which is counterproductive. To optimize the system, use the Windows optimization master.