I'm not an expert at all so please guide me out in detail. I own a Dell Inspiron 15R laptop with 4gb RAM and 1TB hard disk with roughly 715gb of free space. When i boot the laptop, it takes me roughly 15+ mins to reach the administrative password screen and additional 5 to 10 mins to reach the desktop. I dont have any viruses according to my McAffee scans and nor do I have too many heavy softwares installed (only Adobe's photoshop, after effects and premiere which could be called heavy). What's wrong? I'm tired of figuring it out and tech babble on most forums wore me out.. Please help urgently!