Hardening GPO

Hi all, 

I would like to know what kind of impact do these policies have on applications?

1)User Configuration\Administrative Templates\Windows Components\Attachment Manager\Hide mechanisms to remove zone information\Set 'Hide mechanisms to remove zone information' to 'Enabled' 

2)Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\System settings: Use Certificate Rules on Windows Executables for Software Restriction Policies\'System settings: Use Certificate Rules on Windows Executables for Software Restriction Policies

3)Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Network access: Named Pipes that can be accessed anonymously\Configure 'Network access: Named Pipes that can be accessed anonymously

4)Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Network Security: Restrict NTLM: NTLM authentication in this domain

5)Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Network access: Do not allow anonymous enumeration of SAM accounts and shares\Network access: Do not allow anonymous enumeration of SAM accounts and shares' 

6)Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Accounts: Administrator account status7)Computer Configuration\Administrative Templates\System\Group Policy\Registry policy processing

8)Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Set client connection encryption level

Thanks

Ching An