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High CPU usage can indicate a number of problems. If a program eats up too much of the processor, it’s likely not performing well. CPU overload is also a sign that the machine is infected with a virus or malware and needs to be dealt with immediately. Or simply because your computer can’t keep up with the tasks you perform, perhaps you need to upgrade.
Steps
Windows
- Many games and multimedia programs will use 100% CPU when running. This is normal because these programs are designed to run alone.
- On Windows 8, you can see the full name instead of the system name of the process. This will make the identification process much easier.
- On Windows 8, click the End task button.
- Forcing the program to shut down can cause the loss of actions you have not yet saved. Forcing a system process to shut down can cause crashes if not restarted.
- You don’t need to force “System Idle Process” to shut down. Although this process consumes a lot of CPU, it really doesn’t use that much. When System Idle Process uses a lot of CPU, it means that your computer has many energy processes available.
- If you have trouble forcing a program to shut down, refer to some of the articles online for more details.
- Uninstall – If the program is not needed then uninstalling is the simplest way to prevent it from slowing down the system.
- Reinstall or Update – Many times an error in a program causes it to consume a lot of CPU. Reinstalling the program and updating the new version from the developer may fix the problem you are having.
- Remove a program that starts with your computer – If a program is causing your computer to start up slowly but you still need it, you can prevent it from starting with your computer.
- Run a virus and malware scan – if you find malware, you need to remove it with an anti-malware and anti-virus program. This can be a complicated process and you cannot remove the virus without reinstalling Windows. You can refer to more articles online for how to remove viruses and malware. [2] X Research Source
- Open the Contrp Panel and select “Power Options”. If you don’t see this option, click “Hardware and Sound” then select “Power Options”.
- Click “Show additional plans” to expand the list.
- Select “High performance”. This is the option that unlocks the full capabilities of the processor.
- You can use USB to increase available system memory.
- Upgrade RAM. More RAM is also a way to reduce the burden on the processor.
- Processor upgrade.
Mac
- Activity Monitor shows all running processes on Mac.
- Many multimedia editing programs use 100% of the CPU when running, especially when encoding, recording, or rendering. This is normal because programs are designed to make the most of your processor.
- Forcing a program to shut down can destroy actions you haven’t saved yet. Forcing a system process to shut down can cause the machine to stop working until it reboots.
- If you have trouble finishing the process, refer to more articles online to know how to force a program on Mac to shut down.
- Uninstall – If the program is not needed then uninstalling is the simplest way to prevent it from slowing down the system.
- Reinstall or Update – Many times an error in a program causes it to consume a lot of CPU. Reinstalling the program and updating the new version from the developer may fix the problem you are having.
- Remove a program that starts with your computer – If a program is causing your computer to start up slowly but you still need it, you can prevent it from starting with your computer.
- Run a virus and malware scan – if you find malware, you need to remove it with an anti-malware and anti-virus program. Macs don’t often get infected with viruses, but they still do sometimes. Malware is more common and they take a toll on the processor. One of the effective anti-malware tools is AdWare Medic, which you can download for free at adwaremedic.com .
- Refer to the articles online to know how to upgrade RAM. More RAM can reduce the burden on the processor.
wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 14 people, some of whom are anonymous, have edited and improved the article over time.
This article has been viewed 41,837 times.
High CPU usage can indicate a number of problems. If a program eats up too much of the processor, it’s likely not performing well. CPU overload is also a sign that the machine is infected with a virus or malware and needs to be dealt with immediately. Or simply because your computer can’t keep up with the tasks you perform, perhaps you need to upgrade.
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