Aslam-u-aliykum

Experts main ne koi 8 months pehle samsung ka i3 laptop lia. pehle to performance achi rahi lakin last month se system slow hota ja raha hai. PC on karne k koi 3 hours bad buhat slow ho jata hai. switching between apps mushkil ho jati hai. even main regularly ccleaner bhi use karta hun,

Please post your kind answer.

thanks