Ubisoft has said good customer support will resolve the few occasions when its Tages DRM affects players.
“While it’s correct that copies of Anno  include three activations and that changing hardware may trigger the need for reactivation, the vast majority of Anno customers never encounter this scenario,” Ubisoft told Rock Paper Shotgun in a statement.
“On the rare occasion when a customer does need additional activations, Ubisoft customer service is available to quickly resolve the situation, and we encourage those customers to contact us directly so that we can ensure they are able to continue to enjoy their game.”
Anybody encountering issues with Ubisoft’s DRM is encouraged to contact customer service to initiate resolution.
Anno 2070 uses a DRM system called Tages, which hit headlines this week when it was discovered that swapping out a piece of hardware counted towards each license’s three install limit.
Tages doesn’t include any option to deactivate an installation, instead leaving a config file on those computers which have had a legitimate installation on them. As RPS points out, should you reformat your harddrive, you’ll lose one of your three licenses.