Retrieve hidden inactive icon items lost in system

Q: I am using Windows XP, but recently found that the "Start" property of the menu, under the "Taskbar" tab, the option to hide the inactive icon & rdquo; becomes Gray is unavailable, can't be checked, how can I get this option back?
A: It may be that you have inadvertently modified some settings in Group Policy, causing the relevant key values ​​in the registry to change. So that the option to "Hide Inactive Icons" is disabled, please fix it as follows.
1. Click “Start →Run”, enter “gpedit.msc” in the run box, and press Enter to open the Group Policy Editor.
2. Expand “User Configuration & Rarr; Administrative Templates & Rarr; Taskbar and Start Menu" in the right pane, set “Close Notification Area Cleanup" to “Unconfigured”.
3. Close the Group Policy Editor and it will take effect after reboot.