User section and Windows Update section of PC Setting in Windows 8 is missing.
When opened from Control Panel > User Accounts > Make changes to my account in PC setting,
"Page not found. Sorry, the page you requested isn't available, or you've have found an outdated link." is displayed.
I have already tried Microsoft safety scanner, sfc /scannow, automatic repair and logging using hidden Administrator account.
My power plan option page is also missing and when tried to open setting, "cannot open access control editor. the activation requires the display name to be present under CLSID key. Also while trying to open network connection properties, "An unexpected error occurred" is displayed. I don't know if these problems are related.