Looking for a laptop with these specs below! For student?

Looking for a laptop with these specs below:

Price: RM 2.5k or below
Brand: Preferably Lenovo, Asus or Acer
Usage: School (M.S office etc), web surfing, multimedia. No gaming involved.
Preferred screen size & resolution: Preferably 15.6". Minimum 14". Preferably Full HD but HD can be accepted as well.
Preferred storage size & RAM: Minimum 750GB storage. Preferably 6GB RAM.

Note:
- Can let go of audio quality due to limited budget.
- Preferably with backlit keyboard. Or laptops that offer optional backlit installment.
- Prefer one that comes with optical drive.

Check the regular stores for refurbished laptops.