Hi there and a big thanks to Piriform for this great program.
This behavior actually started a couple of versions ago:
* Whenever I start CCleaner it immediately occupies one of my two CPU cores fully. Otherwise it runs normally, however.
* It does not terminate if closed, continuing to occupy the CPU.
I use W7 x64.
P. S.: Another issue: CCleaner does not appear to clean HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths