We have a regular need to connect to and view trace files located in \\computername\c$\Users\username\AppData\Local\Temp\Desktop Authority
I created this custom action that could easily be modified to any folder on the machine. Assumes you have administrative rights and inbound access to C$.
{actionpath}shellexec.vbs "\\{smartname}\c$\Users\{username}\AppData\Local\Temp\Desktop Authority"