I have updated to 0.9.16 and having the same problem. I have disabled virus program with no success. What else could be blocking access. It was previously working fine. My pc is Windows 8.
ERROR: Could not open ebook
[Error 5] Access is denied: u'C:
\\users\\hp\\AppData\\Local\\Temp\\calibre_0.9.16_ tmp_jn2arj\\piekut_ebook'
|