You administer a desktop computer that has the following hardware specifications:

* Dual-core 2.5 GHz processor
* 1 GB RAM
* 25 GB unpartitioned disk space
* Onboard graphics that has WDDM 1.0

You install a customized Windows 7 Enterprise 64-bit image on the computer by using unpartitioned disk space. The computer operates unacceptably slow.
You need to improve the performance of the computer.
What should you do?

A.
Install another 1 GB of RAM.

B.
Open Task Manager. Set the priority of all SYSTEM processes to High.

C.
Open Performance Monitor. Run the System Performance Data Collector Set.

D.
Perform the initial Windows Experience Index run.