5 Top CPU Usage Optimization Tools for Windows

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A slow and sluggish computer can cause a great deal of frustration. Many factors, including background programs, malware, and outdated drivers, can contribute to a CPU’s declining performance. Fortunately, many CPU usage monitor and optimization tools are available to help you counter this dynamic. This guide brings you the best software to help you optimize high CPU usage on Windows.

Tip: if your processor is heating up, it may benefit you to use a CPU cooler. Learn how to select the right one for you.

1. AVG TuneUp

Price: Free / $75.99 annually

AVG TuneUp helps users experience faster boot times, quicker application launches, and overall advanced system performance. It packs an automatic maintenance feature that’s capable of fixing CPU-related issues and optimizing system settings with just a few clicks. AVG TuneUp can also be used to free up disk space by removing temporary files, cache files, and other unnecessary data. It can further optimize your computer’s performance by disabling unnecessary startup programs and defragmenting hard drives.

AVG TuneUp program interface overview.


  • Allows you to put CPU-intensive programs to sleep
  • Offers registry cleaner option to improve system stability
  • Includes power management tools to extend battery life


  • Free trial only lasts 7 days

Good to know: Windows Modules Installer Worker eating up a lot of CPU power? Learn what to do about it.

2. Restoro

Price: Free/ $65 annually

With Restoro, you can easily start a scan on your PC to check for issues causing high CPU usage, then attempt to fix them. The tool can also scan and repair issues related to malware infections, system crashes, and DLL errors. After the scan has completed, the tool offers actionable tips, like repairing damaged system files, updating drivers, removing malware, and optimizing system settings.

Restoro program interface overview.


  • Replaces damaged system files from an online database
  • Includes a registry cleaner


  • Requires an active Internet connection to access the online database

3. Process Tamer

Price: Free

Process Tamer is a free system utility software with many helpful features to optimize CPU usage. It automatically detects applications or processes consuming excessive CPU resources and adjusts their priority levels to prevent system slowdowns or crashes. This feature is handy for users who frequently work with resource-intensive applications, such as video-editing software. Moreover, the tool includes various customizable settings: users can set specific CPU usage thresholds for individual applications, adjust the frequency of CPU checks, customize the software’s visual alerts, and more

Process Tamer program interface overview.


  • Offers customizable settings and visual alerts
  • Completely free to use


  • Limited features compared to other system optimization tools

4. Process Lasso

Price: Free / $24.95 annually

Process Lasso is a robust system optimization and CPU monitoring tool. The software uses a proprietary algorithm to optimize CPU usage and system performance by automatically adjusting the priority levels of running processes. The tool also includes various automated process management features, including automatically launching and closing applications, managing system services, and setting CPU affinity for specific processes.

Process Lasso program interface overview.


  • Includes the ProBalance feature that prevents system freezes caused by excessive CPU usage
  • Offers customization options for tailored usage scenarios


  • Not a very user-friendly UI

Tip: want to see better performance while gaming? DirectStorage in Windows 11 may be able to help with that.

5. CPU-Z

Price: Free

CPU-Z is a free system utility software that provides detailed statistics about the CPU, memory, and other system components. The program offers detailed insights about the motherboard, including the manufacturer, model, and BIOS version, as well as information about the system’s memory, including size, speed, and timing. In addition, it provides real-time monitoring of the CPU’s clock speed, voltage, temperature, and memory usage. This can be particularly useful for users who are overclocking their CPU or trying to troubleshoot system stability issues.

CPU Z program interface overview.


  • Lightweight application that doesn’t take much space
  • Offers a handy driver update checker for proactive alerts


  • Limited efficiency compared to more advanced system optimization tools

Good to know: learn everything there is to know about your PC with these benchmarking programs for Windows.

Frequently Asked Questions

What causes 100% CPU usage?

100% CPU usage usually occurs due to many background processes and applications choking your memory. Additionally, certain idle system processes and malware also contribute to spiking your CPU usage.

Does high CPU usage affect the health of my PC?

Yes, prolonged high CPU usage can elevate the temperature of your PC and gradually affect your processor, GPU, and other internal components. Check out this guide if you want to learn how to reduce CPU temperature on your computer.

Does upgrading my RAM help with curbing high CPU usage?

Upgrading your RAM will help with overall system performance. If your PC has insufficient RAM, the CPU will spend more time caching data, thus increasing CPU usage. As a result, upgrading your RAM will indirectly impact CPU usage. Even so, this may not solve the underlying root cause of your high CPU usage.

Image credit: Unsplash. All screenshots by Joshua Solomon.

Joshua Solomon
Joshua Solomon

Joshua is a product manager turned tech content writer specializing in how-tos and troubleshooting articles. He firmly believes that true value lies in producing engaging and fluff-free content. A writer by day and an avid chess player by night, he prefers not to discuss himself in the third person, but can be convinced to do so occasionally - like now :)

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