I have just changed providers and when I try to open some files - PDF gas bill and a brochure from a site etc I get a message Windows cannot access the specific device path or file you may not have appropriate permission to access the item AND ITS MY GAS BILL.!!!!! help.
I have just had my provider on the phone and he said I maybe had not removed the old Adobe programme before installing the updated one. This I had not done have now done it and hey presto fingers crossed all is well ........at least I got my gas bill - sob sob.