I purchased PDFTools V6 and regularly installed the apps on Windows 10 pro 64 bit. Now, PDF-XChange Lite v6 does not work properly: when I try to print something, I get the following error message "Could not create temporary file "...". Access denied. Printing may fail". Tipically the printing process ends more or less regularly after this message, but not always. Does anybody have a clue on how to solve this issue? Thanks a lot in advance!