my primary concerns are,
1. Dota 2 (steam game) - Will i need to reinstall "steam client and game" once i change os from win 7 to ubuntu 14.1 ?(Ubuntu supports Steam client)
2. MS office - Will i need to uninstall before i change os?
if yes, what will happen to files ?
after changing os, will i be able to open those files in open office or
libre office ?
3. Handbrake & VLC - Will i need to reinstall them ? (both support ubuntu)
4. GPU - I use Asus R7-250, will i need to reinstall drivers ?