A few people have contacted us to say that when they attempt to open a PDF with Adobe Reader 9.3 on Win7 by double clicking it, Adobe will not open and Win 7 will hang (the explorer process under the task manager will show a high activity).
If you experience this, try to right click the PDF file and select “open with” and then select Adobe Reader 9.3. If this works, something is most likely wrong with your file association and Win 7 is trying to open the PDF in another program, a previous (incorrectly removed or updated) version of Adobe Reader or similar.
The easiest fix is to right click as above and select “Always use the selected program to open this kind of file”. However, some users find that this option is disabled. In such circumstances, your only option may be to uninstall Adobe Reader, then before reinstalling it, manually search through regedit deleting entries which seemed to pertain to either Adobe Reader or Adobe Digital Editions. (NB! editing the registry is always a risk, and we obviously accept no liability).