1 is caused by malicious software on your computer.
2. See if you have used any third-party QQ and peripheral tools recently, which may cause QQ to keep scanning the number.
3. The solution is to download a Tencent computer housekeeper from computer housekeeper official website, and then find some small software that you don't often use, and uninstall it through software management-software uninstall.
4. Use the computer housekeeper's safety physical examination and anti-virus functions to carry out overall killing.
If you have any other questions, please come to the computer housekeeper enterprise platform again and we will try our best to answer them for you.