Check event viewer and see if there are any notices there.
And you could try this:
Start>Run>msconfig>Normal Startup (or try dionostic) And try to look for services that are stopped while start up.
you can enable boot.log.
Start>Run>msconfig>boot>enable boot log.
Restart and go to C:\windows\ntbtlog.txtCheck for any drivers which were unable to load.
ACER PREDATOR G9-791 |Intel Core i7-6700HQ |16 GB RAM |GTX970M 3GB |FULL HD | 750GB SSD | Samsung 850 PRO & 2X M.2 SSD RAID 0
G75VW |Intel Core I7-3610QM |24GB RAM |GTX670M 3 GB |FULL HD | 526GB SSD | Samsung 840 EVO & 850 PRO
GL552VW |Intel Core i7-6700HQ |12 GB RAM |GTX960M 3GB |FULL HD | 256GB SSD | Samsung