Turn on 64-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows

This policy setting determines whether Internet Explorer 11 uses 64-bit processes (for greater security) or 32-bit processes (for greater compatibility) when running in Enhanced Protected Mode on 64-bit versions of Windows.

Important: Some ActiveX controls and toolbars may not be available when 64-bit processes are used.

If you enable this policy setting, Internet Explorer 11 will use 64-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows.

If you disable this policy setting, Internet Explorer 11 will use 32-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows.

If you don't configure this policy setting, users can turn this feature on or off using Internet Explorer settings. This feature is turned off by default.

Supported on: At least Internet Explorer 11.0
Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Internet Explorer\Main
Value NameIsolation64Bit
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

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