One click and free memory leaps from 800 MB to 6 GB. It feels like a repair. Mostly, the same data just moved to a different shelf - and your apps will pay a small toll to fetch it back. Here is the journey of one gigabyte.
The before-and-after screenshot is the RAM cleaner's best sales tool, and it is technically true: the Free number really does jump. What the screenshot never shows is where the data went and what it costs to bring it back. This page follows the numbers honestly, so you can judge a cleaner by results instead of by a graph.
When the cleaner empties the standby list, those pages are simply relabelled free - the data is dropped, because a copy already exists on disk. When it trims a running app's working set, the pages move to the standby or modified lists, and the modified ones get written to the page file. Nothing was compressed, repaired or optimized. Shelves were rearranged. The disk copy was always the real one; RAM was just the express lane.
Committed memory is the total your running programs have actually promised to use. Cleaning does not close programs, so demand stays. That is why, in the panel above, Free jumps by 5.6 GB while Committed slips by 0.2 GB. If your PC was slow because programs genuinely needed more than your RAM holds, it is still slow after the clean - the arithmetic that mattered never changed.
Touch a trimmed app now and Windows must fault its pages back in - from the page file or the original files on disk. Each return trip is small, but across a whole desktop it adds up to the slightly heavy feeling people notice after aggressive cleaning. The cleaner gave you a prettier number and charged your apps for it. On a fast SSD the toll is minor; on an old hard disk it is very noticeable.
Do not judge by the graph - judge by time. Pick three things you open daily. Time them before a clean, clean, then time the same three again, then once more after ten minutes of normal use. On a healthy PC the honest result is: same, or a touch slower right after, then identical. If your times genuinely improve and stay improved, your machine is one of the narrow exceptions (very low RAM, or a leaking app) - and this series has cases for both.
There is one honest scenario: a PC with very little RAM where you are about to open one huge application, and gigabytes are parked in the modified list or held by an app you just closed. Clearing modified and standby first can save the new app a messy first minute. That is a deliberate, occasional move - not a daily ritual, and not a reason to keep a cleaner resident in your tray.
The complete knowledge and full walkthrough are in the video - the tool on a real PC, every option shown live.
Watch Full VideoBecause the freed memory was standby cache, which Windows could already hand out instantly. Your programs' real demand (Committed) did not change, and their trimmed pages must now be read back from disk, which cancels the gain.
The numbers are real; the interpretation is the trick. Free RAM is the least useful memory metric on a modern PC. Available memory and app response times are the honest measurements.
Minutes. Windows immediately starts rebuilding the standby cache from your normal activity, because an empty cache is wasted speed. A graph that needs re-cleaning every hour is showing you Windows working as designed.