Igor. He justs wants an explanation.
I think this may be what he means?
If you selected the option, during Ccleaner install, the option to run from recycle bin right click wont stick.
The OP's suggestion is a little abbreviated, this is what the Ccleaner people say (They also say that they do not normally update Ccleaner for Beta puposes - You are warned!)
Open Regeditand drill down to [HKEY_CLASSES_ROOT\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\Shell\]. Right-click the Shell 'folder' and click Permissions.
Change the permissions for Administrators to FULL CONTROL. Install CCleaner*, then go back into the registry and reset the permissions on this same key back to READ.
*If CC is already installed, change the Options to add Open and/or Run to the Recycle Bin menu.
If you find, as I did, that IE Temporary Internet files are not being cleaned, add C:\Users\*UserName*\AppData\Local\Microsoft\Windows\Temporary Internet Files to CC's Custom Files and Folders. Options > Include > Add Folder.