I have recently upgraded to Windows 8 operating system on my computer. After successfully installing the OS I was trying to get used to it by exploring all the settings. One thing that I have noticed is that if I go to Charms Bar > Settings > Change PC settings and here I am not able to change the lock screen wallpaper. When I click on browse then it will simply freeze. I was also attempting to do the same thing for changing the profile picture but it again freezed. So if anyone has some idea how to fix this it would be helpful. Thanks
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