I have written a script that queries the registry on multiple servers looking for specific keys (dealing with iSCSI). After the query, I need to make changes to some of the keys in:
My plan is to make a Group Policy that will change this across the board.
My question has a few parts:
- Are the GUIDs from
HKLM\SYSTEM\CurrentControlSet\control\classdetermined from the driver? For example, would the same GUID number for iSCSI be on all Windows boxes? or would it be the same for Windows 2008 and a separate one for 2003?
- The GUIDs contain different instance IDs (0000, 0001, etc). If I make the changes in every instance, would that matter?
- If I add the keys on systems that don't have these keys, would performance be affected?
I am sorry for the multiple questions, and if that is too many for one post, then consider this as a single, concise question:
Can I change the aforementioned keys across an entire network without introducing problems?