I finally managed to save it and overwrite the existing file (which had the same name). But
when I checked in the folder, there were three files with the extension .tmp, for each time the error message showed up, I presume. What are these files, and why did the error message occur?
Thanks to the guys at technet, the solution is to turn off the preview pane in Windows Explorer. Click Organize, click Layout, unselect “Preview Panel”.
For some people it is the detail pane.
This issue occurs for my users when they right click -- open with from windows explorer.
Symption / error message:
Encountered a sharing violation while accessing
mfc xxx .tmp