CCleaner is considered as one of the most popular PC cleaning utilities with multiple cleaning tools to save your disk space. When using CCleaner you can run only one scan at a time but with new trick you can run multiple scans in CCleaner tools simultaneously.
While CCleaner is open, hold down the Shift key and click on CCleaner taskbar icon to open another instance of it. Then you can run multiple scans of different tools on CCleaner. In the above screenshot you can see I am running Duplicate Finder and Disk Analyzer at the same time.