to the the 3rd question, what if the tier 4 dependent has a CoS from an employer, will he be able to switch to Tier 2 general from Tier 4 dependent while within UK?

Hi, I need your valuable suggestion and advice I'm in UK for last 4.7 years on Tier 2 ICT Long Term visa.We have to leave UK in 2017 January as I will be completing 5 years on ICT. My wife would like to do her masters here in UK. Could you please help on the below clarifications? 1. Can she switch ...