First, be sure the place you locate the photo.
Next, on the MS. Powerpoint, right-click on a slide and choose 'Format Background'
1. A new window will open.
2. Select the 'Picture or texture File' option.
3. Click 'File...' to browse for your picture file.
4. Click 'Apply to All' then click the button close.
Tadaa! Here you go!
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