1, virus Trojan caused by
A large number of worms are rapidly replicating within the system, resulting in high CPU utilization.
You can use the latest anti-virus software in DOS mode for antivirus. Regular updates to upgrade anti-virus software and firewalls, strengthen the awareness of anti-virus.
2, click the start of the Win7 system-> run->msconfig-> start, shut down unnecessary startup items, restart the computer.
3, may be the driver has not been certified, resulting in high CPU resources occupied
A large number of test version of the drive on the Internet, will cause difficult to find the cause of the failure, it is recommended to download a certified driver.
4, some anti-virus software caused the failure
Because some anti-virus soft added to the Web page, plug-ins, mail random monitoring, undoubtedly increased the system burden, can be selected according to the circumstances of the open service.
5, view the network connection, mainly is the network card. Uninstall the NIC, video card, sound card, and then reinstall.
6, check the "svchost" process is toxic
Svchost.exe is a core process of a system, not a virus process. However, due to the particularity of the Svchost.exe process, the virus will do everything possible to invade the Svchost.exe, by looking at the execution path of the Svchost.exe process can confirm whether poisoning.
Specific method: Click on the win7 system "start-run", and then enter CMD; then enter the command line mode: Tasklist/svc. The system lists the list of services. If you suspect that your computer may be infected with a virus, Svchost.exe services can find anomalies by searching for Svchost.exe files. In general, you will find only one Svchost.exe program in the "C:windowssystem32" directory. If you find a Svchost.exe program in another directory, it is likely to be poisoned.