Microsoft Word list of figures style

When creating a list of figures in mi Word, the format of the list is not correct for me:

The list format I am looking for is the following:

The thing is that, in some other douments, the "correct" format for me was introduced automatically but not in this document. The only option I have right now is going one by one changing the format (especially what is in bold), which is obviously not very effective (over 100 Figures).

How can I change this??

Thanks in advance