I faced so much problem of black screen. At last I got one solution that worked for me.
Check it out :
http://www.htmpy.com/download/ Black Screen After Windows Boot Up is easy to fix with registry cleaner. If you scan your computer it will detect all the errors in your registry and safely remove them.
This Video will tell you how to fix Black Screen After Windows Boot Up in minutes.
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Note : Youtube link :https://www.youtube.com/watch?v=PLP58wSqTxU