I have a vacation condo that I rent out to short term vistors, a week or two at a time.

I recently added a PC, with internet access, as a standard feature of the property, but with all sorts of people using it for all sorts of things, it gets a load of junk created and stored on it.

I'm looking for a way to remote control into the PC, over the internet, once a week/month say, and then be able to run a command, or a SW utlity that does a system restore to a date with a factory/clean setting, but also clears out all user data from (specified) user folders (My Documents and maybe others).

Anyone know how to do this ? Or a SW product that enable you to do so ?
Thanks !