Acer iconia w3, how to erase all info

First do you just need to remove the data or do you need to wipe to an NSA approved level ? If the latter there is no good way with an SSD.

If just personal and I assume you want it to be bootable after then the best way is to do a full disk restore to factory default with a reformat of the disk. This requires the proper recovery media.

 or first create a new administrator account and use that to remove/delete all artifacts from your account then delete that account.

There will be some fragments left in the registry but that will take third party software to remove.

I just put anything personal on a SD card.