Go to the official CCleaner Professional page .
Deep cleaning, real-time monitoring, and automatic software updates. CCleaner Professional Plus Free Download
Detailed hardware analysis for diagnostics and upgrade planning. Go to the official CCleaner Professional page
Drive defragmentation to improve file access speeds. CCleaner Professional Plus Free Download
Click on the "Free Trial" button. This gives you full access to Professional features for 14 days.
The official trial usually does not require payment information upfront, so you won't be charged automatically when it ends.