deploy .net 4.0 wpf application problem

I been working on a application that I am planing on distributing. For some reason I am not able to install it on other computers. first let me show you my deployment settings maybe I am doing something wrong in there (I left all the defaults).

Deployment settings:

after doing that I get the following files:

So far everything looks great! Let me show you what happens when I try installing this app on several computers:

.

Computer 1: (Running windows 7 with Service Pack 1)

application installs in a matter of seconds and it works fine. I am able to uninstall it as:

THE APPLICATION WORKS GREAT!

.

Computer 2: (Running windows vista with service pack)

IT DOES NOT INSTALL:

when I click on install I get the following error:

so as you can see I was not able to install it on that machine. I tried uninstalling it then installing it again and I get the same problem.

.

.

computer 3: (running windows xp with service pack 2)

when I ran the setup.exe file it took a while to download and install whatever requirements it needed. It took 1 hour to install what I believe was the开发者_如何学C:

and when that part finished at the end I got an error saying: "you do not have enough disk space" and I have 50GB of free disk space on my c drive.

SO IT DID NOT WORK WITH THIS COMPUTER EATHER.

.

.

Computer 4: (windows xp with service pack 2)

I get the following error:

. . . . .

.

why is it so difficult to deploy an application. this application works great in all the computers that have visual studio installed. Should I try to downgrade to .Net 3.0 or maybe .Net 2.0?

---

Edit

Could this be because I might not be able to publish applications? I got visual studio for free because my university gave it to me. I know there are student versions where you can try and also that they expire every six months. I been using visual studio ultimate edition for about 1 year know and every time I launch visual studio it does NOT say for evaluation purposes only like on my laptop. My splash screen actually comes out as:

---

You selected in your prerequisites the "Microsoft .NET Framework 4 Client Profile", but is that what your application is targeting? Check your application properties -> Application tab. Usually a WPF application will target the full .Net framework.