windows 8 Error "this app can't open while user account control is turned off "
Theory on UAC
User Account Control (UAC) can help prevent unauthorized changes to your computer. UAC notifies you when changes are going to be made to your computer that require administrator-level permission. These types of changes can affect the security of your computer or can affect settings for other people that use the computer. We recommend that you leave UAC on to help make your computer secure.
Firstly, the reason Microsoft has done this is because there is a new security feature in Windows 8 for Metro apps called AppContainer that really restricts what areas of the operating system Metro apps can read and write too. When you really disable UAC in Windows 8, you can’t run any apps from the Windows store! Yes you heard that right!
If you disable UAC in Windows 8, you will not be able to run apps from the Windows Store (Metro apps). Instead, you’ll get a nice dialog saying “This app can’t open. App can’t open while User Account Control is turned off“.
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To turn UAC on or off
Open User Account Control Settings by clicking the Start button , and then clicking Control Panel. In the search box, type uac, and then click Change User Account Control settings.
Do one of the following:
To turn off UAC, move the slider to the Never notify position, and then click OK. If you're prompted for an administrator password or confirmation, type the password or provide confirmation. You will need to restart your computer for UAC to be turned off.
To turn on UAC, move the slider to choose when you want to be notified, and then click OK. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.