Alice wants to know which remote software to use. RemotePC or GotoMyPC? Leo says that they're very similar and both do the same thing. RemotePC is an advertiser but is half the price of GotoMyPC. And they have a free trial before you buy.
If you have Windows 10 Professional edition, it comes with its own remote access options, but there is a known security flaw in it, and Leo recommends waiting until Microsoft fixes it.