My computer won’t open PDF files! It says the following:
Windows has the following information about this file type. This page will help you find software needed to open your file.
File Type: PDF – Adobe Portable Document Format
File Extension: .pdf
Description: Invented by Adobe Systems and perfected over 15 years, Adobe Portable Document Format (PDF) lets you capture and view robust information — from any application, on any computer system — and share it with anyone around the world.
Software or information available at:
Adobe Reader
Adobe Acrobat Family
Foxit Reader
PDF Suite
What does this mean!? Help!

download Foxit reader
http://www.foxitsoftware.com/pdf/reader/
It is asking you to choose a program to read it with. That is what Adobe Reader is for.
http://www.adobe.com/uk/
its all there for you to download for free
You need to download Adobe Acrobat Reader 9
Here is the link, the download is free:
http://www.adobe.com/products/reader/
hope I helped
Probably you can try to uninstall your reader and reinstall different readers, just like adobe and foxit by download from their websites. They are all free.
http://www.adobe.com
http://www.foxit.com
By the way, you can also convert PDF files to editable word format with Adreamsoft PDF to Word Converter and make some edit if necessary. It works for me and perform well. http://www.allpdftools.com/pdf-to-word-converter.html#168
After you edit files, you can use a free office add-on SaveAsPDF to save word as pdf format.http://www.microsoft.com/downloads/details.aspx?FamilyID=f1fc413c-6d89-4f15-991b-63b07ba5f2e5&displaylang=en
You all can have a free trial and sincerely hope they can do you some favor.