Had given my laptop at the repair store. They were just suppose to do a checkup and then give a choice on whether to repair or not. They repaired it and charged me 2.8K. No unit replacement or anything, just service. I didn't mind it (was actually happy seeing my laptop boot up and not have a blank screen). It's a dual-boot (Windows/Antergos(Arch-linux)). It booted to Windows instead of GRUB. Didn't care too much, because it had happened before and I had handled it.
After I take it back home, I discover that the WiFi doesn't work (it doesn't even seem to be a driver issue). Live boot of arch doesn't have access to WiFi either. Reinstalled GRUB, only to discover it doesn't boot successfully (issues with video card). So, now I'm stuck with fucking Windows WITHOUT WiFi and an arch-linux that doesn't fucking boot.
Gonna reinstall Arch now.

P. S. : Windows is super fast, because I haven't really used it and don't really like using it. I feel very limited by Windows.