win7 sp1 ultimate x64
updated cc tonight to 5.64.7613 x64
same issue as others with the freezing. task manager shows 2 processes for ccleaner64.exe. only msg in event log is audit success for ccleaner64.exe regarding the IP's for ccleaner's cloud and a request to DNS server. i can ping these points that ccleaner64 at times is calling:
126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168
firewall was turned off on this system and hosts file is empty. no msg of error or blocking from a/v bitdefender.