I cannot get Adobe Acrobat to open and if I double-click on a pdf file it won't open either. I have followed all the advice on the Adobe website, You Tube and Google but nothing has rectified the situation. When I check Task Manager it seems that Acrobat is open, and when I 'End Task' and try again the same thing happens. I have uninstalled Adobe Acrobat and reinstalled it quite a few times and it will only open one pdf file and stops working again. I need to check pdf files before they go to the printer so this problem is a big worry. I am using Windows 10. All the other Adobe CC programs: AI, PS, ID, DW and Lightroom work perfectly. I have deleted all my CS6 files and only have one copy of Adobe Acrobat on my PC .