Index: /trunk/src/VBox/Main/GuestCtrlImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/GuestCtrlImpl.cpp	(revision 35230)
+++ /trunk/src/VBox/Main/GuestCtrlImpl.cpp	(revision 35231)
@@ -346,5 +346,5 @@
                             cbTransfered += uBytesWritten;
                             Assert(cbTransfered <= cbSize);
-                            aTask->progress->SetCurrentOperationProgress(cbTransfered / (cbSize / 100));
+                            aTask->progress->SetCurrentOperationProgress(cbTransfered / (cbSize / 100.0));
 
                             /* End of file reached? */