79Troubleshooting (Advanced)Refer to the following instructions when a problem occurs. If the remedies indicated in the chart do not solve the problem,contact Panasonic Technical Support. For a software problem, refer to the instruction manual of the software.• To check the computer’s usage status (Î page 88). Shut DownCannot shut down or restart Windows. z Remove USB devices.z It may take 1 or 2 minutes to shut down. Sleep or HibernationCannot enter sleep or hibernation. z Remove USB devices temporarily. If the problem persists, restart the computer.z It may take 1 or 2 minutes to enter sleep or hibernation.z The computer does not enter sleep or hibernation immediately after resuming.Wait approximately 1 minute.Cannot enter sleep or hibernationautomatically.z Disconnect peripheral devices.z If you connect to a network using wireless LAN function, perform access pointsettings (Î page 56).z If you do not use wireless LAN function, turn off wireless LAN function (Î page55). If you use wireless LAN function, refer to “To enter sleep or hibernation”(Î page 17) to enter sleep on hibernation.z Check that the software which constantly access to the hard disk or place bur-den on CPU are not used. DisplayTakes time to display [Power Options]screen.z With the following steps, confirm whether [Copy of Panasonic Power Manage-ment] created when the Power Saving Utility is made has become 100 andmore or not.A Click or on the notification area and click [More power options].B Click [Show additional plans].When more than one [Copy of Panasonic Power Management] is displayed,click [Change plan settings] in the power plan to be deleted and click [Deletethis plan] to delete.