Hello everyone I reinstalled windows and I installed Unity 5 latest version but I dont launch the editor and I see grey screen at this picture. Sorry my bad english
[49344-ekran-alıntısı.png|49344]
had this problem. it apperas that unity must be installed on thesame partition with your operating system. instaling it in default location fixed it for me.
I wold take a look at Unity’s trouble-shooting forum.
Thanks for your interests but I have already fixed this problem with installing previous version 