Support dies not work
Not every anti-malware software can detect every single piece of malware. Different anti-malware programs use various techniques and databases to identify threats, which means they might have varying levels of effectiveness against specific types of malware. For example, some anti-malware programs might excel at detecting certain types of viruses but may not be as effective at identifying newer or less common threats.
In your case, as per Windows Defender's detection, OpenCandy is software that often comes bundled with free downloads and can end up on your computer without your knowledge. It's not harmful by itself, but it can perform actions you might not want, such as displaying ads, changing browser settings, or gathering information about how you use your computer.
Bitdefender typically does not flag OpenCandy as malicious, considering it safe. You can verify this by visiting this link https://www.google.com/search?q=OpenCandy+virustotal+results&sca_upv=1&uact=5 and checking each Virustotal link.
If you believe that a website or file is not detected by Bitdefender as malicious or phishing, kindly report it to our malware research team using the forum provided at the link below:
https://www.bitdefender.com/consumer/support/answer/29358/
If the website or file is indeed malicious or phishing, detection will be added within a maximum of 72 hours. However, if no detection is available even after 72 hours, please consider the website or file as safe, as determined by our malware researchers, and no detection will be created for them.
Regards