If you've been redirected here because you posted on a forum, or asked a question in an e-mail, the person wanted you to know how to get help quickly from a group of folks who are willing to do so - but whose time is valuable. You need to put a little effort into the question first to get others to assist. This is how to do that. It will only take you a moment to read...
1. State the problem succinctly in the title
When an e-mail thread starts, or a forum post is the "head" of the conversation, you'll attract more helpers by using a descriptive headline than a vague one.
This: "Driver for Epson Line Printer Not Installing on Operating System XYZ"
Not this: "Can't print - PLEASE HELP"
2. Explain the Error Completely
Make sure you include all pertinent information in the request. More information is better, there's almost no way to add too much data to the discussion. What you were doing, what happened, what you saw, the error message, visuals, screen shots, whatever you can include.
This: "I'm getting error '5203 - Driver not compatible with Operating System since about 25 years ago' in a message box on the screen when I tried to run the SETUP.COM file from my older computer. It was a 1995 Compaq Proliant and worked correctly there.."
Not this: "I get an error message in a box. It won't install."
3. Explain what you have done to research the problem
If the first thing you do is ask a question without doing any research, you're lazy, and no one wants to help you. Using one of the many fine search engines you can most always find the answer to your problem. Sometimes you can't. Do yourself a favor - open a notepad app, and paste the URL's as you look them up. If you get your answer, don't save the note. If you don't get an answer, send the list along with the problem. It will show that you've tried, and also keep people from sending you links that you've already checked.
This: "I read the fine manual, and it doesn't mention Operating System XYZ for some reason. Also, I checked the following links, but the instructions there didn't fix the problem: "
Not this: <NULL>
4. Say "Please" and "Thank You"
Remember, you're asking for help. No one owes you their valuable time. Ask politely, don't pester, endure the people who are rude to you, and when your question is answered, respond back to the thread or e-mail with a thank you to close it out. It helps others that have your same problem know that this is the correct answer.
This: "I could really use some help here - if you have any pointers or things to try, I'd appreciate it."
Not this: "I really need this done right now - why are there no responses?"
This: "Thanks for those responses - that last one did the trick. Turns out I needed a new printer anyway, didn't realize they were so inexpensive now."
Not this: <NULL>
There are a lot of motivated people that will help you. Help them do that.