When installing a program I kept getting the prompt below that an update is pending. Even after a restart, this would display, therefore I changed these registry keys to clear up the issue.
If you had the misfortune of installing Exchange on Primary Domain Controller you will experience some pain when doing a reboot. Typically it will take 10-15 minutes before it restarts and up to 30 minutes to start the Microsoft Exchange Information Store. Consequently, what is really happening in the background is the IS service is being terminated incorrectly on shutdown and the store is left in a “DIRTY” shutdown state. This is very bad on several levels and can cause the Store to corrupt and not start at all, which can be catastrophic.
Using Group Policy Objects can be a huge time saver, but if used improperly can be a big headache. Once you’ve messed around with GPO settings enough, you quickly figure out that you need to create new GPOs for specific programs, events, etc… that are not all in one GPO. This gives you a lot more flexibility and makes it very easy to track down troublesome GPO related issues when done properly.