Anyone who uses Windows needs this free utility, CCleaner. For a start, it gets rid of all the junk left behind by your browser, including temporary files, your browsing history, your URL list, ...
Your Windows drive is probably storing way more than you realize. It’s a common problem. You install an application, use it a few times, then forget it's even there ...
If you extensively use your PC for work, you'll likely notice performance degradation over time. The good news is that it's not the aging hardware, but the digital clutter that's making your PC work ...