I have extra partitions now on my computer and I want to clean them up. Windows 10 went ahead and installed without my permission on my Dell laptop. I wasn't ready to upgrade, yet. After completion, I decided to roll back to Windows 8.1 Now I have extra recovery partitions and I would like to clean them up. My laptop is Dell, so I have a partition for them as well. I need to know which ones I can safely uninstall and the best program to do this with. Please give clear advice on the partitions that are necessary and ones that are safe to uninstall. Thanks in advance.

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