Have black screen my computer

[heartless]

Hello,

hello
my pc got an blue first now a black screen now keyborad an moniter will not come on is this a virus i have window vista os

 

[ksiemb]

Hello,

hello
my pc got an blue first now a black screen now keyborad an moniter will not come on is this a virus i have window vista os

Could be, could also be corrupted driver or other system file(s).
Boot into safe mode, to try to correct from options available.