u can try installing the OS but if the OS recovery files in ur safe partition was affected and u are unable to restore OS from them then it is a possible Hard Disk Failure and for the recovery later on u need Recovery Disk from Acer u can order them they will send u mail for the recovery disk
but u need to buy a new hard drive , First u can try installing OS from Recovery disk u get from Acer if it doesnt help u shud buy a new hard drive , its failure is much frequent, these days bcoz of jerks and bumps its a daily wear and tear
but i am now sure in my solution
ok please let me know about this i can help u more in this please see that these Rams shud match ur specs
look it may be RAM problem pls try removing one chip if u have 2 insttalled or get a new one with same specs for testing these Blue Screens are 100% Ram problems