I noticed 2 weeks back that Adobe tried to go for a automatic update and failed which I didnít noticed as it was not used that time but now when I tried to open a PDF file it just gives the same error when it showed for the update and doesnít open at all. What should I do now? How to open the PDF files in my Windows Vista OS? Tried installing Primo PDF software but it failed half way through. I really feel Adobe is the best for PDFs, so can you please help me to fix it?