Chosen Solution
System crashes. It tries to reboot but gets locked on white screen with horizontal lines and apple logo, and a semi complete loading bar. This is a persistent problem now.
Try booting into Safe Mode by holding down the Shift key on start up. Next try booting from the Repair Partition by holding down the Option key on start up and selecting the repair boot. Let us know your results. If the boot is ok in Safe Mode I would run a good (Paid For) anti-virus from and external boot source.
