Hi,
2 things you can do to prevent this...
1, type
services into the start search and press enter. Once opened, find the entry for the support dock, double click it and change it to 'manual'.
2, type
msconfig into the start search and click the 'Startup' tab. Find the support dock entry and de-select it.

Note
You will have to restart after each/both of these changes have been made
Hope this helps
OS