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Windows Thread, High Contrast - Group Policy in Technical; Anyone got any idea on how to disable accessability options in group policy, the kids are using keyboard shortcuts to ...
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    Alexkelly's Avatar
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    High Contrast - Group Policy

    Anyone got any idea on how to disable accessability options in group policy, the kids are using keyboard shortcuts to enable high contrast and all sorts. I have searched but can seem to find any simple walkthroughs on the net.

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    sandeep2504's Avatar
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    would this help?

    User Configuration\Administrative Templates\Control Panel

    Hides specified Control Panel items and folders. This setting removes Control Panel items (such as Display) and folders (such as Fonts) from the Control Panel window and the Start menu. It can remove Control Panel items you have added to your system, as well as Control Panel items included in Windows 2000 Professional and Windows XP Professional. To hide a Control Panel item, type the file name of the item, such as Ncpa.cpl (for Network). To hide a folder, type the folder name, such as Fonts. This setting affects the Start menu and Control Panel window only. It does not prevent users from running Control Panel items. Also, see the Remove Display in Control Panel setting in User Configuration\Administrative Templates\Control Panel\Display. If both the Hide specified Control Panel applets setting and the Show only specified Control Panel applets setting are enabled, and the same item appears in both lists, the Show only specified Control Panel applets setting is ignored. Note: To find the file name of a Control Panel item, search for files with the .cpl file name extension in the %Systemroot%\System32 directory. Note: To create a list of disallowed Control Panel applets, click Show, click Add, and then enter the Control Panel file name (ends with .cpl) or the name displayed under that item in the Control Panel. (e.g., desk.cpl, powercfg.cpl, Printers and Faxes) Note: This setting does not affect the Categories that are displayed in the new Control Panel Category view in Windows XP. If you want to control which items are displayed in Control Panel, enable the Force classic Control Panel Style setting to remove the Category view, and then use this setting to control which .cpls are not displayed.

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    There are indeed no policy settings to enforce these settings. You could create a custom .adm file to enforce specific registry settings.

    Below are the registry settings which completely disable the accessibility options, also for the default user.
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility]
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\Blind Access]
    "On"="0"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\HighContrast]
    "Flags"="122"
    "High Contrast Scheme"="High Contrast Black (large)"
    "Volital HC Scheme"="High Contrast Black (large)"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\Keyboard Preference]
    "On"="0"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\Keyboard Response]
    "AutoRepeatDelay"="1000"
    "AutoRepeatRate"="500"
    "BounceTime"="0"
    "DelayBeforeAcceptance"="1000"
    "Flags"="122"
    "Last BounceKey Setting"=dword:000001f4
    "Last Valid Delay"=dword:000003e8
    "Last Valid Repeat"=dword:000001f4
    "Last Valid Wait"=dword:000003e8
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\MouseKeys]
    "Flags"="58"
    "MaximumSpeed"="80"
    "TimeToMaximumSpeed"="3000"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\SerialKeys]
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\ShowSounds]
    "On"="0"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\SoundSentry]
    "Flags"="2"
    "FSTextEffect"="0"
    "WindowsEffect"="0"
    "TextEffect"="0"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\StickyKeys]
    "Flags"="506"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\TimeOut]
    "Flags"="2"
    "TimeToWait"="300000"
    
    [HKEY_USERS\.DEFAULT\Control Panel\Accessibility\ToggleKeys]
    "Flags"="58"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility]
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\Blind Access]
    "On"="0"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\HighContrast]
    "Flags"="122"
    "High Contrast Scheme"="High Contrast Black (large)"
    "Volital HC Scheme"="High Contrast Black (large)"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\Keyboard Preference]
    "On"="0"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\Keyboard Response]
    "AutoRepeatDelay"="1000"
    "AutoRepeatRate"="500"
    "BounceTime"="0"
    "DelayBeforeAcceptance"="1000"
    "Flags"="122"
    "Last BounceKey Setting"=dword:000001f4
    "Last Valid Delay"=dword:000003e8
    "Last Valid Repeat"=dword:000001f4
    "Last Valid Wait"=dword:000003e8
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\MouseKeys]
    "Flags"="58"
    "MaximumSpeed"="80"
    "TimeToMaximumSpeed"="3000"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\SerialKeys]
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\ShowSounds]
    "On"="0"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\SoundSentry]
    "Flags"="2"
    "FSTextEffect"="0"
    "WindowsEffect"="0"
    "TextEffect"="0"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\StickyKeys]
    "Flags"="506"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\TimeOut]
    "Flags"="2"
    "TimeToWait"="300000"
    
    [HKEY_CURRENT_USER\Control Panel\Accessibility\ToggleKeys]
    "Flags"="58"
    And the .ADM code [untested!]
    Code:
    removed the code, need some more work to get it working this way. Stay tuned ;-)
    Last edited by ThePrutser; 26th November 2009 at 10:24 AM. Reason: removed .adm code, need some cleaning

  4. Thanks to ThePrutser from:

    ZeroHour (23rd December 2010)

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    Alexkelly's Avatar
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    No i have looked into that already it just stops them from viewing it, it doesnt actually disable it so it wont stop them from being able to use keyboard shortcuts. Thanks for your reply anyway.

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    Alexkelly's Avatar
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    Thanks so what shall i do with this to enforce it on all my machines?

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    Well I am converting it to a .ADM file as we speak. An .ADM file can be added to a group policy so it can be applied using a policy.

    And other option is to import the registry settings using a logon script.

    It is a rather big registry file to convert to .adm, so I need a few minutes (or more)

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    thanks for all this

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    Your going to create a problem for students who need to change the settings for their own visual needs. You are better providing the information into how to alter settings for their own needs so when pupils go to a machine that they need to change to High Vis/ or change background colours they will know how to do it.

    You can also load a specific visual style or force windows classic under User config>Adm Temp>Control Panel>Display>Load a specific visual style or force windows classic.

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    Alexkelly's Avatar
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    To be honest with you out of the 7 years i have been her noone has ever need it, and if they did i would find a resolution to it.

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    Quote Originally Posted by Alexkelly View Post
    To be honest with you out of the 7 years i have been her noone has ever need it, and if they did i would find a resolution to it.
    There are a lot of people who dont know they've got a problem until they change the background colour and suddenly they see an improvement. I was just providing a bit more information to consider before making a blacket block.

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    A few found out how to turn it on then kept doing it for no other reason than to anoy those who didn't know how to turn it off. I disable the short cut as a matter of standard on all new images.

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    Exclamation

    Although Penfold does have point there, I would still advise to use a group policy to lock down these kind of settings. Using group policy you are more flexible in appling settings to specific users or groups.

    Anyway, here it is. It took a while and I have done some base testing and it seems to work. Here is the exact code.
    Code:
    CLASS USER
    CATEGORY "Control Panel"
     CATEGORY "Accessibility"
      POLICY "Blind Access"
       KEYNAME "Control Panel\Accessibility\Blind Access"
       VALUENAME "On"
       VALUEON 1
       VALUEOFF 0  
      END POLICY
      POLICY !!Display 
       KEYNAME "Control Panel\Accessibility\HighContrast"
       PART !!DisplaySetting  DROPDOWNLIST
        VALUENAME "Flags"
        ITEMLIST
         NAME "Use High Contrast - on, Use Shortcut - on" VALUE 127
         NAME "Use High Contrast - off, Use Shortcut - on" VALUE 126
         NAME "Use High Contrast - on, Use Shortcut - off" VALUE 123
         NAME "Use High Contrast - off, Use Shortcut - off" VALUE 122
        END ITEMLIST
       END PART
      END POLICY
      POLICY !!KeyboardPreference
      KEYNAME "Control Panel\Accessibility\Keyboard Preference"
       VALUENAME "On"
       VALUEON 1
       VALUEOFF 0  
      END POLICY
      POLICY !!FilterKeys
      KEYNAME "Control Panel\Accessibility\Keyboard Response"
       PART !!FilterKeysSetting DROPDOWNLIST
        VALUENAME "Flags"
        ITEMLIST
         NAME "Use Filter Keys - on, Use Shortcut - on" VALUE 127
         NAME "Use Filter Keys - off, Use Shortcut - on" VALUE 126
         NAME "Use Filter Keys - on, Use Shortcut - off" VALUE 123
         NAME "Use Filter Keys - off, Use Shortcut - off" VALUE 122
        END ITEMLIST
       END PART
      END POLICY
      POLICY !!MouseKeys
      KEYNAME "Control Panel\Accessibility\MouseKeys"
       PART !!MouseKeysSetting DROPDOWNLIST
        VALUENAME "Flags"
        ITEMLIST
         NAME "Use Mouse Keys - on, Use Shortcut - on" VALUE 63
         NAME "Use Mouse Keys - off, Use Shortcut - on" VALUE 62
         NAME "Use Mouse Keys - on, Use Shortcut - off" VALUE 59
         NAME "Use Mouse Keys - off, Use Shortcut - off" VALUE 58
        END ITEMLIST
       END PART
      END POLICY
      POLICY !!ShowSounds
       KEYNAME "Control Panel\Accessibility\ShowSounds"
       VALUENAME "On"
       VALUEON 1
       VALUEOFF 0  
      END POLICY
      POLICY !!SoundSentry
       KEYNAME "Control Panel\Accessibility\SoundSentry"
       VALUENAME "Flags"
       VALUEON 3
       VALUEOFF 2  
        PART !!SoundSentryVisualWarning DROPDOWNLIST
         VALUENAME "WindowsEffect"
         ITEMLIST
          NAME "Flash active caption bar" VALUE 1
          NAME "Flash active windows" VALUE 2
          NAME "Flash desktop" VALUE 3
         END ITEMLIST
        END PART
      END POLICY
      POLICY !!StickyKeys
       KEYNAME "Control Panel\Accessibility\StickyKeys"
       PART !!StickyKeysSettings DROPDOWNLIST
        VALUENAME "Flags"
        ITEMLIST
         NAME "Use Sticky Keys - on, Use Shortcut - on" VALUE 511
         NAME "Use Sticky Keys - off, Use Shortcut - on" VALUE 510
         NAME "Use Sticky Keys - on, Use Shortcut - off" VALUE 507
         NAME "Use Sticky Keys - off, Use Shortcut - off" VALUE 506
        END ITEMLIST
       END PART
      END POLICY
      POLICY !!Autoreset
       KEYNAME "Control Panel\Accessibility\TimeOut"
       VALUENAME "Flags"
       VALUEON 3
       VALUEOFF 2  
       PART !!AutoResetTimeout DROPDOWNLIST
        VALUENAME "TimeToWait"  
        ITEMLIST
         NAME " 5 minutes" VALUE 300000
         NAME "10 minutes" VALUE 600000
         NAME "15 minutes" VALUE 900000
         NAME "20 minutes" VALUE 1200000
         NAME "25 minutes" VALUE 1500000
         NAME "30 minutes" VALUE 1800000
        END ITEMLIST
       END PART
      END POLICY
      POLICY !!ToggleKeys
       KEYNAME "Control Panel\Accessibility\ToggleKeys"
       PART !!ToggleKeysSetting DROPDOWNLIST
        VALUENAME "Flags"
        ITEMLIST
         NAME "Use ToggleKeys - on, Use Shortcut - on" VALUE 63
         NAME "Use ToggleKeys - off, Use Shortcut - on" VALUE 62
         NAME "Use ToggleKeys - on, Use Shortcut - off" VALUE 59
         NAME "Use ToggleKeys - off, Use Shortcut - off" VALUE 58
        END ITEMLIST
       END PART
      END POLICY
     END CATEGORY
    END CATEGORY
    
    [strings]
    Display=Configure High Contrast and its shortcut settings
    DisplaySetting=High Contrast and shortcut setting
    KeyboardPreference=Enable Keyboard Preference
    FilterKeys=Configure FilterKeys and its shortcut settings
    FilterKeysSetting=FilterKeys and shortcut setting
    MouseKeys=Configure MouseKeys and its shortcut settings
    MouseKeysSetting=MouseKeys and shortcut setting
    ShowSounds=Use ShowSounds
    SoundSentry=Use SoundSentry
    SoundSentryVisualWarning=Choose the visual warning:
    StickyKeys=Configure StickyKeys and its shortcut settings
    StickyKeysSettings=StickyKeys and shortcut setting
    Autoreset=Enable Automatic Reset of the accessibility
    AutoResetTimeout=Turn off accessibility features after idle for:
    ToggleKeys=Configure ToggleKeys and its shortcut settings
    ToggleKeysSetting=ToggleKeys and shortcut setting
    .

    Copy this code to a text file. Save this file as AccessibilityOptions.adm (or whatever name you like, make sure it ends with .adm). Then add this template to the Administrative Templates of a group policy especially for users. In the policy browse to "Control Panel" -> "Accessibility". There you should see 10 settings, if you don't then activate the Administrative Templates Hive, right click and choose "View" -> "Filtering..." (if you right click on a hyve which is not selected it will not show the "View" option!). Clear the check box for "Only show policy settings that can be fully managed".

    The settings should speak for them selves. I have not added any "help" sections, because I am too lazy, the settings are pretty straightforward and it would take even more time.

    Let me know the results or if you need some more help!

    Note
    These are not fully managed registry settings you apply using group policy. This means if you no longer want to use these settings, only removing the policy or setting the options to not configured does not change the registry back to it original setting. You would have to re-enable the default settings using this policy first, before removing the policy.
    Last edited by ThePrutser; 26th November 2009 at 01:00 PM. Reason: removed attachment. .adm are not allowed even zipped :(

  14. 4 Thanks to ThePrutser:

    Busybub (26th November 2009), darkest_star (2nd July 2013), jamiet147 (20th June 2013), OverWorked (20th July 2011)

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    Alexkelly's Avatar
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    Thanks took a while to find it because im useing 2008, all i really needed to do was browse to classic view templates , im going to have a play and ill let you know cheers for your help.

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    In windows 2008 you need to look under "Classic Administrative Templates" and in the filtering turn off "Only show policy settings that can be fully managed" I attached a screenshot (made on a Windows 2008 server).

    In the screenshot you can also see, that I can see the specific settings.

    W2008.png

    [EDIT]
    You probably just found it as I posted this
    Last edited by ThePrutser; 26th November 2009 at 02:07 PM.

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    Alexkelly's Avatar
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    Brilliant thanks for you help, how did you manage to extract the key strings and values form the registry to save as a .adm file for future reference.

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