I think as per your requirements, you should buy one of the followings.
1. Lenovo Essential G505 59-379446 Laptop
2. Dell Vostro 14 3445 3445E14500iGU Notebook
3. Dell Inspiron 14 3442C4500iBU Notebook
All these three models covers minimum essential features like:
500 GB HDD
You will not regret in terms of service from a reputed make of Dell and Lenovo who are pioneer in laptop market. I have used them and have got best service.