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

cd%systemroot%\softwaredistribution

ren download download.old

net start wuauserv

net stop bits

net start bits

net stop cryptsvc

cd%systemroot%\system32

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.