The reasons why this can be started are as follows:

1. Default permissions of the system: Tik Tok needs some basic permissions, such as network access permissions and storage permissions. These permissions are usually turned on by default, and the application can still start normally when the user closes.

2. Application update: When you update the Tik Tok application, you may reassign and update the permissions. Even if you turned off some permissions in the previous version, the updated version may request these permissions again and enable them at startup.

3. Non-essential permissions: In addition to the necessary permissions, Tik Tok may also request some non-essential permissions, such as camera permissions and microphone permissions. Turning off these unnecessary permissions may restrict the use of some functions or features, but it will not affect the startup of the application.