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Thank you thinkpad_user for your answer it solved the problem completely. But if you allow to me correct the &quot;key&quot; part to &quot;regword&quot; that would make it easier for people who might watch this solution. Simply delete the LM compatibility regword value, the one in the right pane, and that's it, your Network Security: Lan Manager Authentication Level is back to &quot;not defined&quot;. <br />
Again thank you so much for your help.<br />

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Thank you thinkpad_user for your answer it solved the problem completely. But if you allow to me correct the "key" part to "regword" that would make it easier for people who might watch this solution. Simply delete the LM compatibility regword value, the one in the right pane, and that's it, your Network Security: Lan Manager Authentication Level is back to "not defined".
Again thank you so much for your help.


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Thank you. Yes - either way will work. Thanks again. .. .Thinkpads_User<br />

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Thank you. Yes - either way will work. Thanks again. .. .Thinkpads_User


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I'm running windows 7 professional, 64 bit, and as you all know there's the security policies known as local security policy under this lies a list of network security policies one of them is called Lan Manager Authentication Level, on a fresh install it is set to not defined, is there anyway I can return to this state, I changed it to NTLM2, and I would like to have it back at &quot;not defined&quot;<br />
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I'm running windows 7 professional, 64 bit, and as you all know there's the security policies known as local security policy under this lies a list of network security policies one of them is called Lan Manager Authentication Level, on a fresh install it is set to not defined, is there anyway I can return to this state, I changed it to NTLM2, and I would like to have it back at "not defined"



reset local security policy option

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.