If you're looking for CCleaner 4.5 , it’s important to note that this specific version is quite legacy, as the current official release is If your goal is to optimize a modern machine, the latest version of CCleaner
The CCleaner 4.x series was the pinnacle of this philosophy. Versions like 4.5 were designed to run on Windows XP, Vista, 7, and 8. They offered a classic interface—the iconic gray toolkit aesthetic—without the aggressive upselling that defines modern freeware.
If you proceed to download CCleaner 4.5, follow this checklist:
A dedicated task killer allowed users to quickly terminate background processes to free up memory.