While rare and usually because of a bug, hang, or crash, sometimes files in OS X may be stuck with an "in use" lock that will prevent them from being edited or managed by other programs. Here is how ...

The file is corrupt and cannot be opened. A Word document gets corrupted due to many reasons. If your computer was attacked recently by malware, adware, etc., there ...

Several Outlook users, on different forums, have reported encountering the error “OST file cannot be opened,” when trying to open the application or sending ...

If Outlook will not open an attachment and returns an error telling you to check your permissions, you have one of two problems. Your temporary file folder is either ...