hey. im thinking of buying new laptop. last laptop i bought was in 2010 during my study years and that was small acer notebook. now am already working i need something more reliable laptop. could you guys help me?

1. Preferred Brand : acer/samsung/sony
2. Budget : rm3-4k
3. Usage : multimedia (movies/tv series/songs), web browsing, office work (word/powerpoint)
4. Preferred laptop/screen size : 13inch or less.

thanks in advance!