Hello, guys I was upgrading windows through USB bootable disk(PC doesnt have DVD drive). I got a error in the middle. Now I cannot upgrade or install new copy. When upgrading It says" THe computer started using the Windows Installation disc. Remove the installation disc and restart your computer so that windows starts normally. Then, insert the installation disc and restart the upgrade. The problem is I cannot start windows normally. First it said that windows cannot be found. So i went to recovery mode and renamed windows.old to windows. Now it loads but when I enter password in my profile it says user profile service cannot be found. (User login) When i click custom(fresh windows installation it says that some files are missing. I download different version of windows and it still gives me the problem Can anyone help? I really need help because its not my PC. Can we do something through recovery.