Use contextual spelling

Enabling this policy to turn contextual spelling on by default.

Supported on: At least Windows Vista
Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Shared Tools\Proofing Tools\1.0\Office
Value NamePowerPointSpellingOptions
Value TypeREG_DWORD
Enabled Value5
Disabled Value0

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