How to Fix High CPU Usage?

High CPU usage means that the programs installed on your computer are using full energy of the CPU, and your computer thus runs very slowly.Open up task Manager by pressing Crtl-Alt-Delete at the same time, and then click Performance tab, your CPU usage history will be displayed.

There are many legitimate programs or illegitimate programs such as spyware and viruses on your computer that are the cause for high CPU usage.If the CPU spikes happen rarely and can correct themselves quickly, don't worry about it. But if they keep coming back or don't go away, you have to fix it.

How to stop the cause for high CPU usage?

Scan for Spyware or Adware                                                                                    
Since spyware or adware is often the cause for high CPU usage, you should first scan your PC for these nasties.

Disable the amount of services running in the background                                
You can do this by altering your computer configuration. Here is how:
1. Open your Start menu.
2. Click Run
3. In the command screen type "msconfig.exe"
4. In the "system configuration utility",click either "service" or "startup" tab
5. Uncheck all programs that your are no longer using.
6. Click "OK"

Cleaning your Registry                                                                                           
You can free a lot of resources by cleaning your registry.  Use a cleaner to repair it. This is a must!

Stop Svchost.exe                                                                                                
Svchost, which is short for "service host", is a core part of the operating system that provides support to many of the required services that are Windows. You can see all the copies of svchost and what services they are running by typing "tasklist / svc" in a command window. It's necessary for your computer to function properly. However, you can stop the amount processes that are loaded. This will limit the need to for svchost server for loading. Here is one way to stop the svchost from loading:
1.In Windows XP1. Click Start | Run (type) "services.msc" (no quotes)
2. Scroll down to "DNS Client", Right-click and select: Properties
3. Click the drop-down arrow for "Startup type"
4. Select: Manual, click Apply/Ok and restart.
(IF you are the only PC user, and not part of a domain.)

This also eliminates one of SVCHOST process in Task Manager. Remember this is onlly one way to eliminate the processes in svchost. You need to disable a list of unnecessary programs to limit the need to use svchost server. If you can not fix High CPU Usage, you can try smartPCFixer and it can make it for you!
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