I will try to flash with windows 7 I hope it work.
EDIT:I somehow managed to flash an .ftf file but still can't roor the device with Win8 is there a way to install a rooted .ftf file?
Sent from my LT30p using xda app-developers app
Sony Xperia T 4.1.2 Stock Rooted
Samsung GalaxyTab 2 7.0 Rom:CM 10.1 RC