larryg1516 0 Posted April 10, 2019 When trying to run the file ccsetup556.exe to install the newly released CCleaner V5.56, I'm getting a Firewall Alert about an invalid digital signature (see attached). Is this a correct situation or indicating a corrupted/malware file? Share this post Link to post Share on other sites
Andavari 1 Posted April 10, 2019 ccsetup556.exe downloaded from CCleaner.com has a valid SHA-1 and SHA-256 digital certificate on Windows 10. What version of Windows are you using? I know when for instance on Windows XP it can't read the new digital certificates that are in software installers to help validate them. Share this post Link to post Share on other sites
larryg1516 0 Posted April 10, 2019 Tried again and it installed without error. Close issue. Share this post Link to post Share on other sites
