Why my computer show always 100 percent usage?
You should scan for spyware to make sure your computer is not infected. This can cause multiple programs and process to be loaded into CPU access and RAM thus making your CPU usage high. However, you should monitor it to make sure that the spikes in usage are temporary or constant. Constant would indicate a virus. Monitor it by pressing Ctrl-Alt-Del. This brings up the task manager. Check out the link below to see visuals.
Here are some ways to cut down on CPU access
Disable the amount of services running in the background– You can do this by changing your computer configuration.
1. Open your Start menu.
2. Click Run
3. Type “msconfig.exe”
4. In the “system configuration utility” click either “service” or “startup” tab
5. Uncheck all programs that you are no longer using.
6. Click “OK”
If you haven’t cleaned your registry in a while. This is necessary. Your registry holds all the information regarding updates, installs, un-installs etc. You should also check to see what programs are running in your task manager. If you see a program like svchost.exe. You may need to clear this program in order to return your computer back to normal CPU access time.