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Machine Policies > Windows Components > Internet Explorer > Internet Control Panel > Advanced Page >

Allow software to run or install even if the signature is invalid

Policy Details

Policy ClassMachine
Supported OnAt least Internet Explorer 6.0 in Windows XP Service Pack 2 or Windows Server 2003 Service Pack 1
ADMX Fileinetres.admx
Requires RebootFalse
Requires Log OffFalse

Registry Location

The following registry values are involved in this policy.

HKLM\Software\Policies\Microsoft\Internet Explorer\Download!RunInvalidSignatures

Official Explanation

"This policy setting allows you to manage whether software, such as ActiveX controls and file downloads, can be installed or run by the user even though the signature is invalid. An invalid signature might indicate that someone has tampered with the file.

If you enable this policy setting, users will be prompted to install or run files with an invalid signature.

If you disable this policy setting, users cannot run or install files with an invalid signature.

If you do not configure this policy, users can choose to run or install files with an invalid signature."


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