My MacBookPro early 2011 screen 13inch goes black

I am having trouble with my early 2011 MacBook Pro.  It does a few things.  When I open files or Chrome applications, the window becomes black for a bit before loading of the real thing, that I open.  In addition, sometimes the whole screen just disappears and becomes completely black.  I turned off the screen saver and sleep out to ensure that it is not that.  I will work on things and then boom, it's all black.  So I try to hit enter/return and nothing or I try to hit the power button to see if that would help and nothing.  He can go black for a few seconds up to about a minute, and he then turns back to normal.  I recently downloaded CleanMyMac own upward things 3 because I had only 8 GB of space left.  I'm now 50GB available.  But the black screen started before that.  My computer is also running very slow.  CleanMyMac shows he turns at about 8 to 17%.  I don't know how to solve either.  I moved as much as I can on my external hard drive.  I really need help, to know why he's not black.  If she's dying how can I save it to my external hard drive?  Time Machine does not work on my hard drive because he says that it is not logged.  But I can log the external HD because I already have stuff on it.  Any advice would be greatly appreciated.  I can't buy a new computer right now so I need to figure out how to fix it.

Thanks for the help.

Benoit

How to correct my own Mac is too uninstall it. It is one of the worst apps autour and can cause many problems. After uninstalling the crapware, see if the problem persists. If it does not work please

EtreCheck, created by one of his own assistants here in CSA. It is a diagnostic tool that is very useful for us to find problems. It will also give us additional specifications on your Mac. After his execution after the logfile here. It will never contain any personal information

Tags: Notebooks

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