Explain why the CPU usage is high.

Sometimes when you run the program, you will find that the speed is obviously slow, but obviously there are not many programs, but the CPU usage is very high.

If the CPU usage is high, it will make your computer run very slowly, and what is the reason for the high occupancy rate? The relevant personnel have summarized the following nine possibilities for us:

1. Anti-antivirus Software causes failure

As the new versions of KV, Kingsoft, and Rising have added random monitoring of web pages, plug-ins, and emails, the system burden is undoubtedly increased. Processing: There is basically no reasonable way to deal with it. Try to use the least amount of monitoring services. Upgrade your hardware.

2, the driver is not certified, resulting in 100% CPU resources

A large number of beta drivers flooded the Internet, causing difficult to find the cause of the failure. Handling: Especially for the graphics card driver, it is recommended to use Microsoft-certified or officially released drivers, and strictly check the model and version.

3, virus, Trojan caused

A large number of worms quickly replicated within the system, resulting in high CPU resource utilization rate. Solution: Use a reliable anti-virus software to completely clean the system memory and local hard disk, and open the system settings software to see if there is abnormal startup. Regularly update and upgrade anti-virus software and firewalls, strengthen anti-virus awareness, and master the correct anti-virus knowledge.

4, control panel & mdash; management tools & mdash; service & mdash; RISING REALTIME MONITOR SERVICE point the right mouse button, changed to manual.

5, start -> run->; msconfig->; start, close unnecessary startup items, restart.

6. View the “svchost” process.

svchost.exe is a core process of the Windows XP system. Svchost.exe does not only appear in Windows XP, but svchost.exe exists in Windows systems that use the NT kernel. Generally, the number of svchost.exe processes in Windows 2000 is two, and the number of svchost.exe processes in Windows XP has risen to four and four.

7. View the network connection. Mainly the network card.

8, View Network Connections

When a computer with Windows XP is installed as a server, when it receives a connection request on port 445, it allocates memory and allocates a small amount of CPU resources. Serve these connections. When the load is too heavy, the CPU usage may be too high because there is an inherent trade-off between the number of work items and the responsiveness. You need to determine the appropriate MaxWorkItems settings to improve system responsiveness. If the value set is incorrect, the server's responsiveness may be affected, or a user may have too much system resources.

To solve this problem, we can solve it by modifying the registry: expand the [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServiceslanmanserver] branch in the Registry Editor, and 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 and exit:

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

in the Explorer. When you right click on a directory or a file, you will likely have the following problems: Transfer of any file at that time will likely stop the corresponding

Network connection speed will be significantly lower < Br>

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

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

With the above nine reasons, you can easily find out the cause and get your computer back to normal.

If you think your computer is running very slowly, it may be that the CPU usage is too high. If it is for this reason, you can solve it by referring to the above tutorial.