Your wireless network is not listed in the Connect to a network window of your computer. You need to connect to your wireless network.
Which two actions should you perform?（）

You need to use the Event Viewer window to review the event logs for only critical and error events. You also need the maximum amount of detail for each of these events.
 What should you do?（）

After you install a new updsate, an application on the computer fails to run. You need to remove the update.
What should you do?（）

Your portable computer has two 512-MB memory modules installed in the only two memory slots available.
You need to improve the speed of your computer.
 What should you do?（）