The network speed is slow, go to the task manager to see the number of processes. If many processes don't open many programs, it may be that there is a conflict between the system and the software, or the system is aging or poisoned ... It is recommended to check the virus. If there is no poisoning, I suggest you reinstall the system. If you feel trouble, uninstall qq music and reinstall it. If it's not enough, switch back to the cool dog. You can change it automatically in the startup item. Enter msconfig in the run bar of the start menu, and a dialog box will pop up after confirmation. Click the startup tab, you can add or subtract startup items, remove the check in front of the software that can't be started, and exit after confirmation. If you continue to start automatically after modifying the startup item, I have to suggest you change it!