Why is protected mode on even with a Group Policy Trust Center

I have a trust center policy established for Office, Word, etc. 2010. Yet the last two times I've installed Office 2010 for a user I get the "read only" banner at the top of the document. I've had to go to options > trust center ..., in Word, Excel and powerpoint on the workstation and specifically add the redirected folder location in order for the user to be able to edit the documents without having to "Enable for editing" each time something is opened. In my Group Policies I have:

Protected View, Trust Center Office 2010 > Policies > Administrative Templates: Policy definitions > Microsoft Word 2010 > Word Options > Security > Trust Center > Trusted Locations > Trusted Location #1, set to \\mail.hprs.local (AD/DC), Enabled and subfolders are checked.

... Trust Center > Trusted Locations > Allow Trusted Locations on the network, is enabled.checked.

The above is likewise set for Excel 2010, PowerPoint 2010 and Office 2010.

Why then do the Office programs on the workstation give me the Protected Mode "Read Only" setting and require me to add the location to the trust center locally for each Office component?
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MarkAsked:
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Kyle SantosQuality AssuranceCommented:
Hi,

I am following up on your question.  Do you still need help?

If you solved the problem on your own, would you please post the solution here in case others have the same problem?

Regards,

Kyle Santos
Customer Relations
MarkAuthor Commented:
Yes, I still need help.
Kyle SantosQuality AssuranceCommented:
jmarkfoley,

Normally office applications open a file in protected mode when the file is downloaded from the internet and the purpose is to protect you from any malicious content that file may contain but you can remove the protected mode by enabling the editing.
See if the following helps?

https://support.office.com/en-us/article/turning-off-protected-view-office-2010-security-2b0c10dc-2c80-44b9-9263-b5160e90fb68

Regards,
MarkAuthor Commented:
My problem has more to do with the Group Policies. The files in question are not from the Internet but are on the local redirected desktop server. Yes, I can add the location to the local trust center on each workstation, but I had long ago set a Group Policy for this that handled the trusts domain-wide. This stopped working something in the past several months.

I think this ends up having to do with my Group Policy "access denied" problem in my question https://www.experts-exchange.com/questions/29103038/Domain-users-not-able-to-automatically-get-redirected-desktop-folders.html. I believe I need to get that straightened out first in order to solve this one. Unfortunately, I've not had much luck with that question either.
MarkAuthor Commented:
I got a solution to my Group Policy issue in https://www.experts-exchange.com/questions/29103038/Domain-users-not-able-to-automatically-get-redirected-desktop-folders.html, and that solution fixed this problem too.

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