Why does QQ always promote itself in the group?

1. Your QQ number was stolen and others used it for advertising. If you don't use other computers or devices to log in to your QQ, your computer may be infected with pilfer date trojan virus.

2, the solution is: only these two possibilities, you can modify the QQ password or reinstall the system, or clean up the virus, I suggest you redo the system and immediately modify the password, QQ software uninstall, and then download and install again.

Anti-virus software can't find out what is hidden in QQ system files, because that is the copyright issue of QQ, but the virus can be stored anytime and anywhere. It's easy to add things to QQ system files, but you can't find them.

The virus lurks in the computer, even if it hasn't started to attack, it will always leave some clues. The easiest way for users to know whether their computers are infected with viruses is to use anti-virus software to conduct a comprehensive inspection of the disks. If you want to detect the latest virus, you must ensure that the virus code of the antivirus software you use is updated in time.