Windows · Free download · Uninstallers and Disk Cleaners

Cpukiller3

Cpukiller3 : A simple application that slows down the computer's CPU speed in order to allow you to launch old legacy applications, regardless of your system configuration

Operating system
Windows 9X/ME/2K/XP/2003/Windows 10/11
File size
733 KB
License
Time-limited Trial
Last updated
Nov 27, 2025

257 downloads·937 page views

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Overview

What is Cpukiller3?

Cpukiller3 : A simple application that slows down the computer's CPU speed in order to allow you to launch old legacy applications, regardless of your system configuration

In depth

A closer look at Cpukiller3

Cpukiller provides you with a way to slow down your processor in order to ensure computer compatibility with older games and applications. With its help, you will be able to run such legacy software on your newer PC.

CPU usage monitoring and speed slow down

The application displays a graphical representation of the CPU usage within its main window, alongside detailed information concerning the CPU vendor and other technical specifications.The slow down factor can be changed using the embedded slider, which gives you the freedom to adjust the speed value to the requirements of the program you want to run.

Generate presets to load configuration settings faster

One important advantage of the application is its ability to create presets for launching certain applications at specific speeds. This saves you the effort and the time needed in order to repeatedly adjust the slow down rate and browse for the target application.For your convenience, each preset can be assigned a hot key, which means that you can activate Cpukiller with a key combination. Also, you can instruct the application to close upon program launch or minimize itself to the system tray, in order not to interfere with your work.

A quick way to slow down your CPU

Cpukiller relies on a multithreaded slow down method, offering you the possibility to switch between the time controlled algorithm and the so-called 'greedy' algorithm, which was implemented in an older version of the application.Featuring multiprocessor support, Cpukiller is capable of helping you launch older applications that might not be compatible with recent system configurations. Please note that even with its help, some of the programs or games you want to launch might not work properly.

Verdict

Should you download Cpukiller3?

Cpukiller3 runs on Windows 9X/ME/2K/XP/2003/Windows 10/11 and is available under the Time-limited Trial license — the installer is 733 KB. We’ve catalogued it under Uninstallers and Disk Cleaners.

Verified clean. Every Cpukiller3 build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

Cpukiller3 specifications

Publisher
Robyrobo
Last updated
Nov 27, 2025
License
Time-limited Trial
Operating system
Windows 9X/ME/2K/XP/2003/Windows 10/11
File size
733 KB
Price
Free
Page views
937

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