You have a computer that runs Windows 7.
You log on to the computer by using a user account that is a member of Administrator Group.
From Windows Explorer you open C:\windows\system32\drivers\etc\hosts in notepad.
You attempt to save the file and receive the save as dialog box.
You need to ensure that you can save changes to c:\windows\system32\drivers\.
What should you do?

A.
Stop the windows search service.

B.
Remove the inherited permissions from the file.

C.
Start Windows Notepad by using elevated privileges.

D.
Change the user account control (UAS) settings toNotify Me Only when programs try to make changes to
my computer.

Explanation:
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Windows 7 does not allow applications to write datato these secure locations.
User Account Control (UAC)
UAC is a security feature of Windows 7 that informsyou when the action that you want to undertake requires an
elevation of privileges. If you logged on with a user account that was a member of the local administrators
group in previous versions of Microsoft Windows, such as Windows XP, you automatically had administratorlevel access at all times. This, by itself, was nota problem because recommended good practice was that
people logged on with accounts that were members ofthe local administrator group only when they needed to
do something related to administration. The problemwith this is that people tended to use their administrator
account as their normal user account. It was convenient for them because they
did not have to log off and log on again each time they wanted to do something related to systems
administration. Unfortunately, this behavior presented a security problem because any program run by auser
logged on with an administrative account runs with the rights and privileges of that user. UAC resolves this
problem by allowing a user that is a member of the local Administrators group to run as a standard user most of
the time and to briefly elevate their privileges sothat they are running as administrators when they attempt to
carry out specific administration-related tasks.
Privilege elevation
All users of clients running Windows 7 run with therights of a standard user. When a user attempts anact that
requires administrative privileges, such as creating a new user account, her rights need to be raised from those
of a standard user to those of an administrative user. This increase in rights is termed privilege elevation. UAC
is a gateway to privilege elevation. It allows users who are members of the local Administrators groupto access
administrative rights, but ensures that the person accessing the Administrative rights is aware that they are
doing so. This privilege elevation occurs only for a specific task. Another task executed at the same time that
also requires privilege elevation generates its ownUAC prompt.