This question already has an answer here:

I downloaded VirtualBox onto my Windows 7 machine after which I successfully downloaded Ubuntu v 14, which I updated to v.15. However, I find that Ubuntu runs very very slowly and that the @ sign does not seem to be recognized. Do I have to pay a yearly subscription to get Ubuntu to work optimally? If so to whom?

marked as duplicate by karel, Eric Carvalho, user.dz, psusi, poolie Jun 2 '14 at 4:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


First of all Ubuntu is 100% Free. And latest ubuntu is 14.04 so there is not 15 version. If you are running ubuntu in virtual-box then check the amount of RAM Allocated to ubuntu. Ubuntu need minimum 1 GB RAM and 700 MHz processor.

Not the answer you're looking for? Browse other questions tagged or ask your own question.