Progress...

Preinstalled?

In General: I would recommend doing a clean install.
You can never know.
Regular Anti malware software might, for example, not check proxy settings, wrongly signed SSL keys or third party DNS and Keyserver settings.
The things Lenovo did for example.

@Anaeijon What do you mean?

Well... I can't read chinese, but isn't there some Malware on your Computer?

@Anaeijon
1. That's korean
2. Read the title
3. It removes all malware from adware, trojan, some ransomware, and other files that major antivirus can't detect.
4. The most useful batch script in the world

@Anaeijon Some malware can survive the reinstallation of the os

@Anaeijon "Chinese" 😅

I saw Hangul and knew it was CozyPlales. 😊

@CozyPlanes @Root
Sry for that... I just noticed it's not Japanese... So I assumed Chinese... Sry.

@Kyo98
Yes. But it's the best most people can do.

@Anaeijon

Oversimplified guide to the most common Asian languages!

Faces/Circles: Korean
Scary/Imposing: Chinese
Friendly/Curvy: Japanese

😛

@Root You call those CJK languages