Guys please help I tried a sfc /scannow and then after the scan it says corrupted files where found but was unable to fix some of them so I did a dism /restorehealth then it says the source files could not be found. I already tried downloading net frame work 3.5 on windows update but it only got corrupted and lead me to a undoing changes restart loop. so I delete the update. I also tried this code:

net stop wuauerv


ren download download.old

net start wuauserv

net stop bits

net start bits

net stop cryptsvc


ren catroot2 catroot2old

net start cryptsvc

then it says dism failed no operation was performed. please help I dont know what to do. I'm also a computer noob and I dont want to reformat or fresh install my laptop. My system restore also dont work because of the corrupted files.