Windows 7 sound card can not be installed how to do

Whether using the driver life or use the driver wizard or even directly download the official driver can not install the Windows7 sound card driver. Why can't I install the Windows 7 sound card driver?
Like the previous Vista, Microsoft does not encourage users to log in to the system as an administrator, because there is a big risk. We know that in Windows 7, if you log in to the system as an administrator, all running programs run with administrator privileges by default. Log in to the system as a non-administrator for security reasons, but sometimes you need to set up or maintain the system, and you must have administrator privileges to execute these operating systems. At present, the folder corresponding to the installation driver has the permission protection setting and the file cannot be replaced, so the Windows 7 sound card driver cannot be installed. Therefore, the team released a solution on the Internet and some netizens worked together to create a repair tool.
Such as: Windows 7 sound card driver one-click repair wizard
After 3 weeks of struggle, finally find a better way to solve the problem that everyone can not be installed, whether it is RTM or officially sold Windows7 can basically solve .