Slow Proc

Slow Proc is a tiny and portable piece of software whose purpose is to increase the load of the CPU, as well as to free it. It doesn't contain many settings, so the app is easy to figure out.
Since installation is not a prerequisite, you can just drop the program files somewhere on the hard disk and run the executable file immediately.
Alternatively, you can move Slow Proc to a USB flash disk or similar storage unit, in order to use it on any machine with minimum effort.
An important aspect to keep in mind is that the Windows Registry does not get new entries, and files are not kept on the hard disk after removing the utility.
The interface is based on a small window with an uncomplicated structure, where you can specify the sleep and delay time. All you have to do is click the "Run" button to initialize Slow Proc. The free and used CPU are displayed on the bottom part of the screen, in percentage values.
In addition, you can access the About panel to view system information (e.g. OS ID, CPU ID, usage and frequency, physical memory, commit charge) and memory status (e.g. allocated memory count, total uncommitted memory, overhead). There are no other options available through this tool.
Slow Proc does not put a strain on system resources, since it uses very low CPU and RAM. It has a good response time and doesn't cause Windows to hang, crash or pop up error dialogs. We haven't come across any problems in our tests. On the downside, Slow Proc has not been updated for a long time, and it does not work properly on newer operating systems.