Recently i started having issues with start up, its sony vaio , never used it much but a month ago i got the memory added to it and the IT person at worked re-installed everything but now every time i start my laptop it goes to repair and take over 2 hours to fix it. since yesterday it starts but when i am on main window it gets stuck and then i have no choice but force shut down i have to attempt it is many times to get it work...please help