I've just checked my GIANT AntiSpyware log files and it seems that they are not being deleted after running CCleaner with the added keys.
%ProgramFiles%\GIANT Company Software\GIANT AntiSpyware
is that the correct directory?
Yer, I checked everything, Even added the key to my other PC which I didn't have this added.
Can you delete them manually?
yes
The mentioned files are being removes successfully when I clean them with CCleaner.