Feel free to delete all the folders you mentioned. Ubuntu does not use them, and instead uses its own recycle folder called ./Trash

Edit 1: Expect Microsoft Windows to re-create the recycler-related folders the next time you connect the drive to a windows machine.

Also, the found.000 folder indicates your hard drive had a problem reading data in the past, which Microsoft scandisk caught and tried to recover. If the data on the drive is important to you, please ensure you have a current backup of that drive.

Thanks to brunopereira81 for mentioning the source of the found.000 folder.

Hope that helps