Changes in DayLight Savings Time
United States Government has brought in new regulations with respect to the Daylight Savings observation. As a followup, Daylight Savings would be started to be observed from March 11 onwards about three weeks prior to the normal daylight savings. This would go on for one week more than the normal in November.
Windows machines need to have an update to have thier systems adapt to this new change. You can view details and download the patch from here. This download requires your system to pass through Genuine Windows Validation test.