2010년 5월 13일 목요일

Prevent Changing the Screen Saver and Wallpaper in Windows 7

 

Sometimes you might not want users to have the ability to change Screen Savers and Wallpaper on Windows 7 workstations. Today we look at how to prevent them from changing either one or both.

You might administer computers in your home or small office and find it annoying when users continuously change the wallpaper and Screen Savers to something obnoxious. A lot of times they might be inexperienced users and download these so-called “wonderful and free” Screen Saver/Wallpaper packages from shady sites that include loads of Spyware. Preventing users from changing them is another helpful tool to avoid wasteful time spent switching things back.

Prevent Changing Screensavers & Wallpaper Using Group Policy Editor

Note: This method uses Group Policy which is not available in Home versions on Windows 7.

Open the Start Menu and enter gpedit.msc into the Search box and hit Enter.

gpedit_start

When Local Group Policy Editor opens, navigate to User Configuration \ Administrative Templates \ Control Panel \ Personalization. Then in the right column double-click on Prevent changing desktop background.

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Now check the radio button next to Enabled, then click OK.

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Back on the Group Policy Screen, double-click on Prevent changing screen saver.

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In the next screen select the radio button next to Enable, click OK, then close out of Group Policy Editor.

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Now when a user goes into the Personalization section, the Desktop Background hyperlink is now grayed out and inactive. Notice the message One or more of the settings on this page has been disabled by the system administrator at the bottom of the section.

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If they click to change the Screen Saver, an error message will pop up letting them know the function is disabled.

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Prevent Changing Screensavers & Wallpaper Using a Registry Hack

You can also make a couple Registry changes to prevent users from changing the Wallpaper & Screen Saver…which will work on Home versions of Windows 7. Before making any Registry changes make sure you back it up first.

Open the Registry by typing regedit into the Search box in the Start menu and hit Enter.

regedit_Start

First we’ll start with the Wallpaper. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System and create a new String Value and name it Wallpaper.

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Then modify the Value data to point to the location of the Wallpaper you want it to always be. Where in this example it’s our main wallpaper on our local drive…then click OK.

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Now let’s make sure they can’t change the Screen Saver. In the same Registry location, we need to make a new DWORD (32-bit) Value.

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Give it the Value name of NoDispScrSavPage and the value data of “1” and click OK.

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Close out of the Registry and restart the machine or simply log off then back on again for the changes to take effect.

Results

For the Wallpapers, a user can still go in and see the selections, however if they try to change it to something else…

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It will just go back to the Personalization screen and no changes will be made, as we set the value to only be the background we specified.

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If the user tries to make a change to the Screen Saver, the hyperlink will be grayed out and inactive, and the message One or more of the settings on this page has been disabled by the system administrator will be displayed at the bottom of the section.

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Conclusion

If you’re tired of users changing the Wallpaper and Screen Saver, and want another way to help avoid Malware, locking down these settings can help a lot. Again, before making any changes to the Registry, make sure to back it up. These settings should work in Vista and XP as well.

How to Disable Access to the Registry in Windows 7

If you don’t know what you’re doing in the Registry, you can mess up your computer pretty good. Today we show you how to prevent users from accessing the Registry and making any changes to it.

Using Local Group Policy Editor

Note: This method uses Group Policy Editor which is not available in Home versions of Windows.

First type gpedit.msc into the Search box in the Start menu.

gpedit_start

When Group Policy Editor opens, navigate to User Configuration \ Administrative Templates then select System. Under Setting in the right panel double-click on Prevent access to registry editing tools.

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Select the radio button next to Enabled, click OK, then close out of Group Policy Editor.

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Now if a user tries to access the Registry…

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They will get the following message advising they cannot access it.

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Using Registry Enabler & Disabler 3

If you’re using Home or Starter version of Windows 7, you can use a neat utility called Registry Enabler & Disabler (link below). This app works on XP and Vista as well.

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There is no installation involved so you can run it from a flash drive, disable the registry, then take the flash drive with you while a the user is on the machine.

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Again, if the user tries to access the Registry they will get the following error…

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Using one of these options will stop users from gaining access to the Registry or running any registry hacks. Of course if you have a shared computer, you may want to set up other users with a Standard Account, as they won’t be able to make changes to the Registry anyway.

Download Registry Enabler & Disabler 3

윈도우7에서 프로그램을 호환성 모드로 시작하기

 

출처: How-To Geek Using Program Compatibility Mode in Windows 7

Program Compatibility Assistant

Program Compatibility is a mode that allows you to run programs that were written for earlier versions of Windows. The Program Compatibility Assistant detects compatibility issues and allows you to reinstall using the recommended settings.

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After we closed out of the error, the Program Compatibility Assistant came up advising that the program didn’t install correctly. To try to install it again, select Reinstall using recommended settings.

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The Compatibility Assistant went through and fixed the issue and we were able to install the driver. The problem was the driver was designed for Vista and the the assistant automatically select the correct compatibility mode for us to install it.

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Sometimes you might get a screen similar to this example where Virtual PC 2007 isn’t compatible with Windows 7 and you can check for solutions online.

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After checking for solutions online, we’re shown that there is an update that might solve the issue.

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Which points us to the Microsoft site to download Virtual PC 2007 SP1.

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Note: If you’re an Admin and tired of seeing it pop up because you know what you’re doing, check out our article on how to disable program compatibility assistant in Windows 7 and Vista.

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Program Compatibility Troubleshooter

There might be times when Program Compatibility Assistant can’t find a solution, or a program installs fine, but doesn’t work the way it should. In that case you’ll need to troubleshoot the issue. Right-click on the program icon from the Start Menu or in many programs the shortcut icon and select Troubleshoot compatibility.

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Windows will detect any issues with the program and you can try to run it with the recommended settings, or go through the troubleshooting wizard. For this part of our example we’ll select Try recommended settings.

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This option allows us to test run the program to see if the new compatibility settings fix the issue. Click on Start the program to begin testing it out. After testing the program and determining if the settings work or not click on Next.

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If the program is running correctly you can save the settings and it will continue to run with those settings. If it didn’t work properly, you can try using different settings or report the problem to Microsoft and check for an online solution.

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If you selected No, try again using different settings it will bring up the troubleshooter where you can specify the issues you’re having with the program.

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Depending what you check in the screen above, you’ll be presented with other options for what is not working correctly. Where in this example it shows different display problems.

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New settings are applied to the program and you can try running it again.

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If none of the compatibility settings work for the program, you’re prompted to to send a generated problem report to Microsoft.

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Manually Select Compatibility

Of course if you don’t want to deal with the Program Compatibility troubleshooter, you can go in and manually select Compatibility Mode. Right-click the program icon and select Properties.

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Then click the Compatibility tab then check the box Run this program in compatibility for and select the version of Windows from the dropdown. Now it will always run the program in Compatibility Mode for the version of Windows you selected.

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