
Alright I will help!! xD + Rep if it works...
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1. Get all the pictures that you have into one folder. (For example on ur desktop)
2. Now, open up personalize.
3. Click on Desktop Background
4. Select Browse
5. Select the folder where I told you to put everything in there.
6. Wallah! All the pics should be automatically selected! Change the time interval it takes for the pictures to switch, and Click Save Changes...
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Hope this helps!!!