see if booting into safe mode makes any difference
go to settings/update & security/recovery
under advanced startup, click restart now
choose troubleshoot
choose advanced
choose start up options
hit the restart button
choose a safe mode (it doesn't matter which) by using number associated with it.
Pc will restart and load safe mode
what graphics card do you have?
could try this, and depending where you got Drivers from time before, choose to use Windows update to get new drivers or go to AMD/Nvidia and use theirs
http://www.tomshardware.com/faq/id-2767677/clean-graphics-driver-install-windows.html