You have a computer that runs windows vista.

The computer has one partition and 1 GB of RAM.

You need to upgrade the computer to windows 7.

What should you do?

A.
Add 1 GB of RAM.

B.
Create a second partition.

C.
Disable User Account Control (UAC).

D.
Install windows Vista Service pack 2 (SP2).

Explanation:
You should keep the following in mind prior to and during the upgrade from Windows Vista to Windows 7:

* Perform a full backup of the computer running Windows Vista prior to performing the installation. That way, if things go wrong, you can do a full restore back to Windows Vista.
* You must ensure that Windows Vista has Service Pack 1 or later installed before you can upgrade it to Windows 7.
* Ensure that you have the Windows 7 product key prior to the upgrade.
* You cannot upgrade between processor architectures. An x86 version of Windows Vista cannot be upgraded to an x64 version of Windows 7, and vice versa.
* You can upgrade only to an equivalent or higher edition of Windows 7. You can upgrade Windows Vista Home Premium to Windows 7 Home Premium, Professional, Enterprise, or Ultimate, but not to Windows 7 Starter. Windows 7 Professional is equivalent to Windows Vista Business.
* Ensure that there is at least 10 GB of free disk space on the Windows Vista volume prior to attempting the upgrade.

Requirements:
Windows 7 Home Premium, Professional, Ultimate, and Enterprise editions have the following minimum hardware requirements:

* 1 GHz 32-bit (x86) or 64-bit (x64) processor
* 1 GB of system memory
* A 40-GB hard disk drive (traditional or SSD) with at least 15 GB of available space
* A graphics adapter that supports DirectX 9 graphics, has a Windows Display Driver Model (WDDM) driver, Pixel Shader 2.0 hardware, and 32 bits per pixel and a minimum of 128 MB graphics memory