Ok, so this is a known issue and may users have been facing exactly the same problem with Windows 8 (source: Google) Problem: I can't change my User Account picture. Whenever I click on the "Browse" button, nothing happens. Same goes for whenever I try to change the Lock Screen. Anybody has any ideas? I read somewhere CCleaner removes some essential shortcuts which can prevent that, but I don't see that being the case coz I restored all the icons and even ran "sfc /scannow" just to be sure of that.