new windows 8 hp black screen with mouse arrow only

[chimcho]

i turned on my computer and ive only used it about 5 times and the log in screen was on then when i tried to put my log in password it kept saying it was wrong then it went black now it wont give me anything but a black screen with arrow

 

[dodger46]

i turned on my computer and ive only used it about 5 times and the log in screen was on then when i tried to put my log in password it kept saying it was wrong then it went black now it wont give me anything but a black screen with arrow

Try this first
http://www.tomshardware.co.uk/faq/id-1650840/fix-black-screen-booting-windows.html