First open Home+R enter you have to show this box , in this box you type %tem% then enter after enter you see this file all file select and delete for this keyword :- Shift+Del enter like that your all file will be permanent deleted after you show your pc will be fast better then before performance after again you have run command here two command you should run , second command like that only temp enter same process select all file and delete from command shift+del after delete all file you check your recycle bin app if some file are there then also delete recycle bin file your pc will working fast absulately right way to do fast your computer THANKING YOU