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in Windows 7, it is easier to change the theme than in Windows Vista. although there are more items that can be set, the related options are concentrated on the same page, so you can complete the setting in one place. There are two paths to set the scenery: 1. Right-click anywhere on [Desktop] and select [Personalize] item. 2. Or go to the [Control Panel] to set it. Here, we will demonstrate how to adjust the setting of Windows 7 by means of the control panel.

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Press the [Window] button → [Control Panel]

Select [Appearance and Personalization ]→ [Change Theme].

You will enter the Personalization page, where you can make detailed changes to the system scenery.

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Take [Taiwan Province] as an example, because it is Taiwan Province, and the theme of Taiwan Province also has the effect of changing tablecloths at random.

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You can make more detailed settings on the Personalization page. Below you can set [Desktop Background], [Window Color], [Sound Effect] and [Screen Saver]. On the left, you can set [Change Desktop Icon], [Change Mouse Pointer] and [Change Account Picture]. ?

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select [Desktop] at the bottom of the [Personalization] page.

You can see that there are many tablecloths to choose from. You can choose which tablecloths to play randomly here. ?

below, you can select [picture position], [picture change interval] time and whether to [shuffle]. Set [Picture Position] to [Fill] here, change the time to [31 minutes], and check [Random Play]. Remember to press [Save Changes] in the lower right corner after setting.

in addition, if you choose another theme instead of [unsaved theme], the Aero effect will be turned on by default. If you don't see the translucent Aero effect, there is an option of [Troubleshooting Transparency and Other Aero Effects] at the bottom of [Personalization], please click directly.

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the item "troubleshooting transparency and other Aero effects" will tell the user why the Aero effects cannot be turned on.