If someone uses Teamviewer to remotely repair my computer, will it be bad for me?

Well, I'm not sure ... if you have a good personality, you can give him the computer, let alone install Remote control software ... if you really have bad intentions, let alone TeamViewer and Remote, even QQ remote assistance can install a controlled Trojan horse for you. Besides, if you really want to hurt you, you don't usually use such a low-level and obviously stupid way ... you can bring a Trojan horse to express it.

But if you really don't feel at ease, you can carefully stare at what he does. Secondly, restart the computer after the repair, open the task management to see if there are any suspicious processes, or if it is 360, check if there are any dangerous startup items and services. Generally speaking, you can learn about it.

If there is something wrong with the computer and you can't solve it yourself, you'd better take it to a nearby computer company, which is professional, fast and relatively safe.

Good luck!