Just bought a license for CCleaner Professional then entered the key in CCleaner Free. The program name was changed to Professional, but when I clicked to upgrade, it was written, a new version is available. Then I clicked refresh and got an error window 0x2f7d: Error support secure channels. What to do? After all, the program says that is registered to my name, but when updating error occurs.
A thread here about this error which may give you some ideas of things to try