I'm not sure about the TouchSmart, but HP has a [http://h10032.www1.hp.com/ctg/Manual/c03317211.pdf|service manual for the Envy 15] with keyboard removal instructions starting on the page labeled 53, which is page 61 in the pdf document, I think this [https://youtu.be/0aQ93RRNif4?t=41s|youtube video guide] might be helpful as well. Hopefully those are close enough for your model. You can also check out the [[Topic:HP Envy TouchSmart 15|guides on the device page]], they can at least get you started. Good luck!