What is the best pc cleaner tool for windows os?

Storage sense is a pc cleaner tool better than Windows Disk Cleanup. It is effectively the modern, hands‑off replacement for the aging Windows Disk Cleanup, and in everyday use it’s a noticeably better tool. Unlike the old Disk Cleanup utility, Storage Sense runs automatically on the schedule you set, deleting temporary files, emptying the Recycle Bin, and even clearing out your Downloads folder if you choose.

It also reaches a few junk categories Disk Cleanup PC cleaner tool missed, such as Delivery Optimization Files (Windows Update sharing leftovers) and old Windows update backups that can quietly consume 10+ GB, all without you needing to open a separate app or remember to run anything.

That said, Storage Sense still isn't quite as aggressive as a dedicated deep cleaner like BleachBit—it won’t wipe cache folders from every browser, shred free space, or touch third‑party application leftovers. 

But for the vast majority of users, it's the safest "set it and forget it" upgrade over Disk Cleanup. You'll find it under Settings → System → Storage, and once configured to run weekly with your preferred cleanup rules, it keeps your drive lean with zero manual intervention.

No download, no risk, and it works silently in the background exactly as a modern cleanup tool should.