You have Microsoft System Center 2012 Configuration Manager installed.
You change one or more of the built-in collections.
You try to upgrade to System Center 2012 Configuration Manager Service Pack 1 (SP1).
In this scenario, you receive the following warning message during the prerequisites check:
One or more of the built-in collections has been modified. If you ignore this warning, these modifications will be overwritten by Configuration Manager setup.
If you proceed with the upgrade, the built-in collections are reset to the default settings during the upgrade process.
This issue occurs because built-in collections are read-only and cannot be changed in System Center 2012 Configuration Manager SP1.
Note In System Center 2012 Configuration Manager, some built-in collections can be changed by administrators.
To work around the issue, copy the changed built-in collections before you upgrade to System Center 2012 Configuration Manager SP1, and then re-create the deployment after the upgrade process is complete.