Free Pdf Download For Windows 7

I am unable to download pdf files with windows 7. I have tried Adobe Reader updates, Adobe Reader Repair. I have tried Uninstalling Adobe Reader and reinstalling it. I rebooted computer everytime i tried something different. The problem is still happening. Now,I also tried downloading the same pdf file thru a Firefox browser and it worked fine. Please help with my win 7 pdf issue. This is also a private computer.
***Edit: Since my original post above, I uninstalled Adobe Reader and downloaded Foxit Reader. Now when I try to download a pdf file I get a 'Microsoft Visual C++ Runtime Library' Error (Program: C:Program Files (x86)Internet Exploreriexplore.exe) abnormal program termination. Two different reader programs and still can't download pdf files. I'm begining to think it is not the reader programs and possably my Interent Explorer. Like stated above I can download using Firefox browser. Any info and help would be appreciated.
***Edit: I've run Anti-virus and Malwarebytes and No issues were found, I did uninstall IE9 but now I can't Re-install it. I did not see the post about doing a IE9 default reset before uninstalling IE9. I have been working on using the trouble shhoting guide for reinstalling IE9 but no succes yet. Keep getting an Error Code: 80092004. So I am now running IE8 and I am still having the original problem 'Can't download pdf files'.
***Edit: I Do have IE9 installed and running now. However, I am back to my original problem 'Can't download pdf files'. Adobe is still Un-installed and I'm running Foxit Reader currently. Still getting IE runtime error when i try to download a pdf file. I can however, open a pdf file that was emailed to me. Also, I can download pdf files thru a Firefox browser.
'Pulling hair out - can't afford to loose anymore.'