In the "Disk management" section of the "Computer management" console I accidentally hit the context menu option "Mark as Active Partition" for an external USB hard-disk, that was connected on a Windows 2008 x64 server.
Now the disk appears as "Active" in the disk list. I can't find a way to undo this change, and I'm not sure what are the consequences of this mistake... Can I just remove my USB HD and get away with it? Will the server be still able to boot regularly? Is there something I should do?