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Check if you have this key on registry 
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains, 
 
Or you have protected mode enable 
<a href="http://247pearsoned.custhelp.com/app/answers/detail/a_id/8960/~/internet-explorer%3A-trusted-sites-and-protected-mode" rel="ugc">http://247pearsoned.custhelp.com/app/answers/detail/a_id/8960/~/internet-explorer%3A-trusted-sites-and-protected-mode</a>
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Contents of HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains: 
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains] 
@=&quot;&quot; 
 
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\dell.com] 
&quot;*&quot;=dword:00000002 
 
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\driversupport.com] 
 
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\driversupport.com\apps] 
&quot;http&quot;=dword:00000002 
&quot;https&quot;=dword:00000002 
 
Should I delete the two website entries? 
 
Protected mode is not enabled.
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I deleted HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains (after exporting a reg file), rebooted but the window is still grayed out.
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Did you try to reinstall the IE11?
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Or try this 
&nbsp;Disabling and enabling the IEEtwCollectorService from services tab in task manager.
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I find this maybe can help 
Solution to this issue is the following: 
 
1-Press CTRl+ALT+DELETE 
 
2- Click on Start Task Manager 
 
3- Under Processes tab, close all processes named iexplore or similar 
 
4- Click on Start Menu 
 
5-Click on Control Panel 
 
6-Click on Internet Option 
 
7- Click on Advanced Tab 
 
8- Click “Reset” (Note: I actually did this step a couple of times to make it finally work, so if you did this one or two times, check the steps before carefully and redo this step for more times. And I also cleared all the history.) 
 
Open IE 11 and it should be fixed…
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can you execute a gpresult /v from the command line and share the results here?
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<div>
Luis, 
&gt;Did you try to reinstall the IE11? 
It took me a lot of work to upgrade to IE11 from IE10 so I kinda cringe about that. 
 
IEEtwCollectorService is not listed in task manager services. 
 
I reset IE (and zones) 3 times; no help.
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Do you have any GPO applied ? 
Try the gpresult /v like Trenton says
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<div>
Trenton, 
 
results of gpresult /v: 
 
Microsoft (R) Windows (R) Operating System Group Policy Result tool v2.0 
Copyright (C) Microsoft Corp. 1981-2001 
 
Created On 3/16/2016 at 9:23:58 AM 
 
 
RSOP data for Latitude_E6410\User on LATITUDE_E6410 : Logging Mode 
------------------------------------------------------------------- 
 
OS Configuration: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Standalone Workstation 
OS Version: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;6.1.7601 
Site Name: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
Roaming Profile: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
Local Profile: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; C:\Users\User 
Connected over a slow link?: No 
 
 
USER SETTINGS 
-------------- 
 
&nbsp; &nbsp; Last time Group Policy was applied: 3/16/2016 at 8:56:09 AM 
&nbsp; &nbsp; Group Policy was applied from: &nbsp; &nbsp; &nbsp;N/A 
&nbsp; &nbsp; Group Policy slow link threshold: &nbsp; 500 kbps 
&nbsp; &nbsp; Domain Name: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Latitude_E6410 
&nbsp; &nbsp; Domain Type: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;Local Computer&gt; 
 
&nbsp; &nbsp; Applied Group Policy Objects 
&nbsp; &nbsp; ----------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; Local Group Policy 
 
&nbsp; &nbsp; The user is a part of the following security groups 
&nbsp; &nbsp; --------------------------------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; None 
&nbsp; &nbsp; &nbsp; &nbsp; Everyone 
&nbsp; &nbsp; &nbsp; &nbsp; Local account and member of Administrators group 
&nbsp; &nbsp; &nbsp; &nbsp; BUILTIN\Administrators 
&nbsp; &nbsp; &nbsp; &nbsp; BUILTIN\Users 
&nbsp; &nbsp; &nbsp; &nbsp; NT AUTHORITY\INTERACTIVE 
&nbsp; &nbsp; &nbsp; &nbsp; CONSOLE LOGON 
&nbsp; &nbsp; &nbsp; &nbsp; NT AUTHORITY\Authenticated Users 
&nbsp; &nbsp; &nbsp; &nbsp; This Organization 
&nbsp; &nbsp; &nbsp; &nbsp; Local account 
&nbsp; &nbsp; &nbsp; &nbsp; LOCAL 
&nbsp; &nbsp; &nbsp; &nbsp; NTLM Authentication 
&nbsp; &nbsp; &nbsp; &nbsp; High Mandatory Level 
 
&nbsp; &nbsp; The user has the following security privileges 
&nbsp; &nbsp; ---------------------------------------------- 
 
 
&nbsp; &nbsp; Resultant Set Of Policies for User 
&nbsp; &nbsp; ----------------------------------- 
 
&nbsp; &nbsp; &nbsp; &nbsp; Software Installations 
&nbsp; &nbsp; &nbsp; &nbsp; ---------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Logon Scripts 
&nbsp; &nbsp; &nbsp; &nbsp; ------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Logoff Scripts 
&nbsp; &nbsp; &nbsp; &nbsp; -------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Public Key Policies 
&nbsp; &nbsp; &nbsp; &nbsp; ------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Administrative Templates 
&nbsp; &nbsp; &nbsp; &nbsp; ------------------------ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; GPO: Local Group Policy 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; KeyName: &nbsp; &nbsp; Software\Policies\Microsoft\Windows\CurrentVersion\ 
Internet Settings\ZoneMapKey\\\server\ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value: &nbsp; &nbsp; &nbsp; 49, 0, 0, 0 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; State: &nbsp; &nbsp; &nbsp; Enabled 
 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; GPO: Local Group Policy 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; KeyName: &nbsp; &nbsp; Software\Microsoft\Windows\CurrentVersion\Policies\ 
Associations\ModRiskFileTypes 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value: &nbsp; &nbsp; &nbsp; 46, 0, 108, 0, 110, 0, 107, 0, 0, 0 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; State: &nbsp; &nbsp; &nbsp; Enabled 
 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; GPO: Local Group Policy 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; KeyName: &nbsp; &nbsp; Software\Policies\Microsoft\Windows\CurrentVersion\ 
Internet Settings\ListBox_Support_ZoneMapKey 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value: &nbsp; &nbsp; &nbsp; 1, 0, 0, 0 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; State: &nbsp; &nbsp; &nbsp; Enabled 
 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; GPO: Local Group Policy 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; KeyName: &nbsp; &nbsp; Software\Microsoft\Windows\CurrentVersion\Policies\ 
Associations\LowRiskFileTypes 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Value: &nbsp; &nbsp; &nbsp; 46, 0, 108, 0, 110, 0, 107, 0, 0, 0 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; State: &nbsp; &nbsp; &nbsp; Enabled 
 
&nbsp; &nbsp; &nbsp; &nbsp; Folder Redirection 
&nbsp; &nbsp; &nbsp; &nbsp; ------------------ 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Internet Explorer Browser User Interface 
&nbsp; &nbsp; &nbsp; &nbsp; ---------------------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Internet Explorer Connection 
&nbsp; &nbsp; &nbsp; &nbsp; ---------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Internet Explorer URLs 
&nbsp; &nbsp; &nbsp; &nbsp; ---------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Internet Explorer Security 
&nbsp; &nbsp; &nbsp; &nbsp; -------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A 
 
&nbsp; &nbsp; &nbsp; &nbsp; Internet Explorer Programs 
&nbsp; &nbsp; &nbsp; &nbsp; -------------------------- 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; N/A
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<div>
thenelson-- 
Go back to the screen shot in your original post. &nbsp;Can you enter a site address in the &quot;Add this site to this webzone&quot;? 
Maybe the Add button will then be active.
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&quot;Add this site to this zone&quot; is grayed out and I cannot enter anything into it.
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<div>
thenelson-- 
Try using the two options offered here 
<a href="http://www.eightforums.com/tutorials/22832-ie-security-zones-enable-disable-add-remove-sites.html" rel="ugc">http://www.eightforums.com/tutorials/22832-ie-security-zones-enable-disable-add-remove-sites.html</a> 
 
If no help maybe this solution will also work for Win 7 with IE11. 
<a href="https://support.microsoft.com/en-us/kb/935786" rel="ugc">https://support.microsoft.com/en-us/kb/935786</a>
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<div>
Per <a href="https://www.experts-exchange.com/questions/27639345/Unable-to-Change-IE-Trusted-Sites.html" rel="ugc nofollow">https://www.experts-exchange.com/questions/27639345/Unable-to-Change-IE-Trusted-Sites.html</a>&nbsp;I set Group policy &quot;User Configuration &gt;&nbsp;Administrative Templates &gt;&nbsp;Windows Components &gt;&nbsp;Internet Explorer &gt;&nbsp;Internet Control Panel &gt;&nbsp;Security Page &gt;&nbsp;Site to Zone Assignment List:&quot; to not configured. &nbsp;This allowed the add site window for trusted sites and I was able to enter a site. 
 
Thanks Trenton and everyone else. &nbsp;I really appreciate all your help.
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<div class="content wysiwyg-content">
I just upgraded to IE 11 from IE 10 (Win 7 Pro 64 bit SP1). The Trusted Zone add sites window is grayed out:<a href="https://filedb.experts-exchange.com/incoming/2016/03_w12/1086896/Trusted-Zone-add-sites.png" target="_blank" title="Trusted Zone add sites window (22 KB)"><img alt="Trusted Zone add sites window" class="file-block lazyload" style="max-width: 394px;" data-src="https://filedb.experts-exchange.com/incoming/2016/03_w12/1086896/Trusted-Zone-add-sites.png" /></a>Group Policy &quot;Do not allow users to add/delete sites.&quot; is not configured. Here is what is in HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2 (I don't know what all the numbered dword entries are):<a href="https://filedb.experts-exchange.com/incoming/2016/03_w12/1086897/InternetSettings-Zones-2.txt" target="_blank" class="file-inline" title="Zone 2 registry settings (4 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>InternetSettings-Zones-2.txt</a>Any ideas what I need to do to enable the Trusted Zone add sites window? 
 
Thanks.
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InternetSettings-Zones-2.txt

Trusted-Zone-add-sites.png

I just upgraded to IE 11 from IE 10 (Win 7 Pro 64 bit SP1). The Trusted Zone add sites window is grayed out:Group Policy "Do not allow users to add/delete sites." is not configured. Here is what is in HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2 (I don't know what all the numbered dword entries are):Any ideas what I need to do to enable the Trusted Zone add sites window?

Thanks.

IE 11 Trusted Zone add sites grayed out

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

Web Browsers

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.