What is the file at the beginning of msg? How to delete?

Msg3.0index.db in QQ is a file of chat records, which can be deleted if not needed. Misc.db is avatar data and can be deleted. It will be updated automatically after deletion, and it will become smaller.

If you need to restore the content of chat records, you can restore them through Msg3.0, main menu-message management-import/export message records. If there is something wrong with QQ and you need to save the message record, you can try to export the message record, and then reinstall QQ before importing.

QQ chat history folder

In daily life, users' QQ chat messages are generally saved in the following path: C: \ Documents and Settings \ Administrator \ My Documents \ Tencent Files \ QQ Number.

Open this path, select a folder named after the QQ number, and then open it. After opening the folder named after QQ number, check whether there are three files: "Misc.db", "Msg2.0.db" and "Msg3.0.db". If there are no three folders, the computer recycle bin can restore them. Log in to QQ message log again and come back.