Cleanup

Path: Optimization → Cleanup.

What is on the tab

Cleanups are divided into groups: “Windows”, “Graphics”, “Browsers” and “Development”. Separately shown are “Privacy”, “Applications” with leftovers of removed UWP applications and “Devices” with entries of disabled devices.

For each cleanup you can view:

• how much space the files occupy;
• risk level: low, medium or high;
• description and “Cleanup logic”: what will be done, which files are affected, where the program looks for them and how old they must be.

At the top of the page are the “Optimal” and “Refresh” buttons. Each group has a “Clean” button. The “Maximum” button appears if “Tweaker mode” is enabled in the BoosterX settings.

Recommendation

“Optimal” selects only low-risk cleanups — this is enough for regularly freeing up space. Select medium- and high-risk cleanups manually and for a specific task. Cleanup frees up space, but does not give a permanent Windows speedup: some caches are recreated.

When cleaning the shader cache, during the first launches of games and when loading maps or scenes not yet visited, stutters and a temporary drop in FPS are possible: the game has to compile shaders anew. This is a consequence of cleaning the cache, not an indicator of a sustained performance degradation after optimization.

How to check the result

After cleanup, compare the free disk space and launch a couple of programs and games that were used most often.

How to change and revert

Deleted files are not returned, so change only the set of selected categories. If a browser, game or Visual Studio is running, BoosterX will report that they need to be closed before cleanup; caches not deleted this time will be collected again, and the cleanup can simply be repeated.

See also

• Cleanup tasks — automatic cleanup on a schedule.
• Cleaning up junk in the context menu — quick launch without opening the application.

Last checked: 2026-09-24.