Wednesday, May 28, 2014

Group Policy Refresh Interval Time for Computers

By Default, Computer Group Policy is updated in the background every 90 Minutes with a random offset of 0 to 30 minutes. In addition to background updates, Group policy for the computers is always updated when the system starts.

You can specify an update rate from 0 to 64,800 minutes (45 days). If you select 0 minutes, the computer tries to update Group policies every 7 seconds. Because Updates might interfere with User's work and increase network traffic, very short updates intervals are not appropriate for most installations.

The Group Policy refresh interval for computers policy also lets you specify how much the actual update interval varies. To prevent clients with the same update interval from requesting updates simultaneously, the system varies the update interval for each client by a random number of minutes. The number you type in the random time box sets the upper limit for the range of variance. For example, if you type 30 minutes, the system selects a variance of 0 to 30 minutes. Typing a large number establishes a broad range and makes it less likely that client requests overlap. However, updates might be delayed significantly.

Tip: Consider notifying users that their policy is updated periodically so that they recognize the signs of a policy update. When Group Policy is updated, the Windows desktop is refreshed; it flickers briefly and closes open menus. Also, restrictions imposed by Group Policies, such as those that limit the programs users can run, might interfere with tasks in progress.