What to do with high CPU usage

Source: Internet
Author: User
Tags cpu usage high cpu usage


1. When the machine slows down, the first thing we think of course is task Manager, to see exactly which program accounted for a higher proportion, if it is a large program that can be forgiven, in the shutdown of the program as long as the CPU normal, then there is no problem; if not, then you should see what the program is, When you don't know what the process is, go to Google or Baidu search. Sometimes the end is useless, in XP we can combine the Msconfig in the startup item, put some unused items to turn off. You can go to the next Winpatrol in 2000.

2, a number of commonly used software, for example, the browser occupies a very high CPU, then upgrade the software or simply use other similar software instead, sometimes the software and the system will be a little incompatible, of course, we can try the XP system under the compatibility of the program, right click on the exe file selection compatibility.

3, Svchost.exe sometimes is a headache, when you see one of your svchost.exe occupy a large CPU you can go to the next aports or fport to check its corresponding program path, that is, what things in the call this svchost.exe, if not C: Windowssystem32 (XP) or C:winntsystem32 (2000), that's suspicious. Upgrade antivirus software antivirus bar.

4, right-click files resulting in 100% CPU consumption we will also encounter, and sometimes the right to pause may be the problem. Official explanation: First click on the left button to select, and then right (not very understanding). Unofficial: Resolve by right-clicking on the desktop-properties-appearance-effects, canceling for menus and tooltips using the following excesses (U). There are some anti-virus software on the file monitoring will also have an impact, you can turn off the anti-virus software file monitoring, there is the Web page, plug-ins, mail monitoring is the same truth.

5, some drivers may sometimes appear such a phenomenon, preferably the choice of Microsoft certification or the official release of the driver to install, sometimes appropriate to upgrade the driver, but remember the latest is not the best.

6, CPU cooling software, because the software in the runtime will use the CPU idle time to cool, but windows can not distinguish between ordinary CPU consumption and cooling software cooling instructions, so the difference between the CPU always show 100%, this will not worry, does not affect the normal system operation.

7, in the processing of large word files due to Word spelling and grammar will make the CPU tired, as long as the tool-open word-options-spelling and grammar to "check the spelling and prosecutorial grammar" tick off.

8, click Avi Video file after the high CPU occupancy rate because the system will first scan the file, and check all parts of the document and establish the index; Workaround: Right-click the folder that holds the video file-Properties-general-Advanced, remove the tick to allow Indexing Service to index the folder for quick Search.

  Solving method

  1, anti-virus software caused the failure

Because of the new version of KV, Jinshan, rising are added to the Web page, plug-ins, mail random monitoring, undoubtedly increased the system burden. Treatment: Basically there is no reasonable treatment, try to use the least monitoring services, or, upgrade your hardware equipment.

  2, the driver has not been certified, resulting in 100% CPU resource consumption

A large number of beta drivers are flooding the web, causing difficult to find fault causes. Processing methods: Especially the graphics driver should pay special attention to, recommend the use of Microsoft Certified or officially issued by the driver, and strictly check the model, version.

  3, virus, Trojan caused

A large number of worms are rapidly replicating within the system, resulting in high CPU utilization. Solution: Clean the system memory and local hard drive with reliable anti-virus software, and turn on the system setup software to see if there are any abnormal startup procedures. Update anti-virus software and firewalls regularly, strengthen anti-virus awareness, master the correct anti-virus knowledge.

  4. System service

Control Panel-Admin tool-Service-rising Realtime MONITOR service Point right mouse button, change to Manual.

  5. Startup item

Start->; run->;msconfig->; start, turn off unnecessary startup items, reboot.

  6, view "Svchost" process

Svchost.exe is a core process of Windows XP systems. Svchost.exe not only appears in Windows XP, but there are svchost.exe in Windows systems that use the NT kernel. Typically, the number of svchost.exe processes in Windows 2000 is 2, and the number of svchost.exe processes in Windows XP rises to 4 and more than 4.

  7. View network connection

Mainly is the network card.

  8. View network Connection

When a Windows XP computer is installed as a server, when you receive a connection request on port 445, it allocates memory and provides a small amount of CPU resources to service these connections. When overloaded, the CPU occupancy rate may be too high, because there is an inherent trade-off between the number of work items and the ability to respond. You need to determine the appropriate MaxWorkItems settings to improve system responsiveness. If you set an incorrect value, the server's responsiveness may be affected, or a user can monopolize too many system resources.

To resolve this issue, we can resolve this by modifying the registry: In the Registry Editor, expand the [Hkey_local_machinesystem Currentcontrolsetserviceslanmanserver] branch in turn, Create a new DWORD value named "MaxWorkItems" in the right window. Then double-click the value, type the following values in the open window and save the exit:

If your computer has more than 512MB of RAM, type "1024", or "256" If your computer has less than MB of memory.

  9. See if Windows XP uses the right mouse button to cause CPU occupancy of 100%:

A short time ago said that using the right mouse button inside the Explorer would result in 100% of CPU resources, so let's see what's going on here.


In the Explorer, when you right-click a directory or a file, you will likely have the following problems listed:

The copy operation of any file at that time will likely stop the corresponding

The speed of network connection will decrease significantly

All stream input/output operations such as using Windows Media Player to listen to music may be the cause of music distortion:

When you right-click a file or directory in the Explorer, when the shortcut menu is displayed, the CPU occupancy rate will increase to 100%, and when you close the shortcut menu, return to the normal level.


  method One: turn off "use transition effects for menus and tooltips"

1) Click "Start"--"control Panel"

2 in the Control Panel, double-click "Display"

3 Click the "Appearance" tab in the "display" attribute

4 in the "Appearance" tab, click "Effect"

5 in the Effect dialog box, clear the checkbox before using transition for menus and tooltips, and then click the "OK" button two times.

  method Two: when using the right mouse click File or directory, first use the left mouse button to select your target file or directory. Then use the right mouse button to eject the shortcut menu.

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