Hello, when I start PowerPoint 2013, I get the error about file missing, however after error-window is closed PowerPoint starts fully. Exact error (translated from Czech): Error window title: Office 2013 Microsoft office encountered an error by trying to access the file, which is no longer available. You can solve the problem by selecting "Partial computer recovery (refresh?), which doesn't affect files". If you need more help, contact customer support. When I switch to different language, PowerPoint starts without that error. I have compared the language resources directories 1029 and 1033 (in Program Files and Common Files), but there are only non-important differences. Please is there any LOG file, in which could I investigate, which file is missing? Thanks.