Some times due to firewall or anti virus software or lack of user's privilege when user tries to update DXD application through auto update it fails. Auto update gives "can not copy from program files directory" error message.

Reason for Error:
Auto update program takes the back-up of current DXD application from installed directory along with all sub directories in it. It also takes the database back-up before applying the auto update. But when auto update program tries to take the back-up of existing application, we receive above error.

Solution:
1. Run DXD application
2. Try to update DXD application wait till "Can not copy..." error message
3. Keep that auto update application open
4. Open windows file explorer and go to DXD installed directory. (e.g C;\Program Files (x86)\The Injury Professional)
5. Copy and paste DXD directory to create DXD - Copy directory. If already exists then remove it first and create new one as mentioned earlier.
6. Once 'DXD - Copy' directory is created then go into 'DXD' directory and remove all sub directories from 'DXD' directory.
7. Press 'Retry' button and then 'Update' button into Auto update dialog kept open in step-3 above. Now, auto update should be successful.
8. Once update is done then copy all sub directories from 'DXD - Copy' directory to 'DXD' directory.
9. Also copy all sub directories from 'DXD - Copy' directory to "C:\Users\UserName\AppData\Roaming\DXD\Update\Back-up\Version No (e.g 9.2.1)\" directory.