Unitech PA950 - Manual (Page 39)

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To change the time display to 24 hours, tap the Time tab and choose a
time style that starts with a capital H.
To customize further, tap the tabs and select desired options. The
characteristics available are determined by the region selected on the
Region tab.
Remove Programs
Tap > Settings > System tab > Remove Programs.
You can remove programs that you installed in storage memory only.
Programs that come with your device cannot be removed.
You can quickly return your device to the factory default configuration
by clearing all memory. All data will be lost. For instructions, see your
owner's manual.
Policy
Tap > Settings > System tab > Policy.
To prevent employees from adding new programs, select Enable
restrictions.