Dell Laptop not working as it used to

Hello, I'm having really big trouble with my laptop, it's not working as intended, there's a lot of problems, and i've tried some solutions but it just won't work, i've tried to system restore, i waited for at least 6 hours, and nothing happend, it just said it failed and that the restore point has been deleted, and now it's gone, also i have a missing .js, like Users/user/appdata/roaming/ .js was deleted.

It went out of control really quickly, just a couple of days ago it was working perfectly fine, now when i boot it up, there's a delay and a black screen, and when i log in, welcome screen goes, it flickers one time, then there's a black screen delay again, until i get to my home screen, and my apps and files that are normally in my desktop aren't there, it's just my wallpaper and a taskbar that doesn't respond, is there anyway to fix this, i can't even open chrome, nor install CCleaner