OT: Windows Movie Maker.

Hello,  I've created a movie on my work PC but when transferred to a USB and opened on my personal laptop it has an error in place of all the pictures which reads "the file (pic name) is missing".  I have the same software on my laptop so not sure what the issue is.  I thought maybe it links to the origin of the photo so I put the folder on the USB as well but still no luck...any help?