When you enable the Use incremental updates for this collection option, this configuration might cause evaluation delays when you enable it for many collections. The threshold is about 200 collections. The exact number depends on the following factors:

• The total number of collections
  
  
• The frequency of new resources being added and changed in the hierarchy
  
  
• The number of clients in your hierarchy
  
  
• The complexity of collection membership rules in your hierarchy
  
  

If a default collection (such as All Desktop and Server Clients) does not meet your business requirements, do not modify the collection. Instead, copy and paste the collection, and then modify the new collection. This practice helps to troubleshoot collection queries and safeguards against the possibility that future upgrades might overwrite and change the built-in collections.

In Configuration Manager SP1, the built-in collections are read-only and cannot be modified.

You can configure maintenance windows for device collections to restrict the times that Configuration Manager can install software on these devices. If you configure the maintenance window to be too small, the client might not be able to install critical software updates, which leaves the client vulnerable to the attack that is mitigated by the software update.

Concepts