how do I delete videos that show up on my autobackup on my cell but don't show up on my PC

[AC Question]

I have 1000 auto backup on my Samsung Galaxy cell phone, which includes about 1 doz videos. I go on my PC's (either home or work) to try to delete them and they don't show up? Been working on this problem for months...

 

[B. Diddy]

Welcome to Android Central! Go to Google+ Photos on the web, click on More, then Albums, and look for an Auto Backup folder. Do you see the videos there?