I accidentally removed the task and all its files. Can they be recovered?
only by using File Recovery Software like Recuva Downlaod: www.piriform.com/recuva
In order to recover your files, you can try using a utility from Software Informer database. Many of these software are free of charge and easy to install and use. Personally, I recommend you try firstly Glary Undelete, Undelete 360, or iCare Undelete Free.