The HOSTS file on computers is an 'old fashioned' way computers talk to each other. If you're not managing a HOST file for anything and it's left to default, you can use it to provide a cheap, easy way to defend against some malware.
Below is a simple AHK script that grabs a HOSTS file from http://winhelp2002.mvps.org and places it into your HOSTS file. This is quick and provides some defense.
Wednesday, May 22, 2013
Thursday, May 16, 2013
The following is a listing of guidelines practiced computer technicians should employ when diagnosing and ultimately resolving computer problems.
1) Isolate the problem
Customers and clients can report and view a problem different from you. When someone would say my computer is frozen, it could refer to the cursor, a particular program or a feature that is slow to respond. Also, make sure there really is a problem. Ask questions like this:
What do you want it to do?
What recently changed on your computer?
When was the last time you performed this task?
Ask questions that have very definitive and short answers. By isolating the problem very quickly you waste less of your and your customer's time.