Finding a good laptop under $500 if anything but an easy ... good battery life (12 hours!), and a clear-looking 1080p display. In our testing, the 53.9 watt-hour battery lasted almost 12 hours ...

Finally, empty your computer’s trash or recycle bin. For a deeper clean, consider running a program like CCleaner to remove unused files and temporary data. Once you’ve completed these steps ...

The program used undocumented internal system features (Native API) to clear system cache (system working set, working set, standby page lists, modified page lists) with variable result ~10-50%.