i have Dell Inspiron laptop with 4 gb ram and 500 gb rom. i recently upgraded it with Windows 10 using Serial windows 10 but it's lagging and not running smoothly. i can't adjust brightness and also can't use Adobe Photoshop CS6 serial.
please help me in this matter. can RAM be increased of the laptop??
It depends on what laptop you are referring to. Some laptops are not supported by Dell or Microsoft for windows 10. Did you look at the support page for your laptop to see if it was supported and if there are any new drivers for windows 10?