Have adobe reader installed, all working fine. Then installed adobe acrobat pro in order to use export to pdf capability. After some time, getting message not subscribed even though I paid for a subscription to use export pdf through acrobat.
I uninstalled acrobat from machine and contacted adobe who said the export to pdf facility in online and not something you install on a PC !!!
They talked me through using the export to pdf online and now I can't open any pdfs on my PC plus the no subscription messages still keep appearing !!!