在 Windows 10 中禁用桌面墙纸 JPEG 质量降低： ^{(Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10: )}每当您将JPEG图像设置为桌面墙纸时，您可能已经注意到桌面墙纸不如原始图像清晰，简而言之，图像的质量不一样。这是因为每当您将JPEG设置为墙纸时，Windows 10 都会在将原始图像设置为桌面墙纸之前自动压缩并降低其质量。这是由操作系统完成的，以便在显示桌面壁纸图像时节省磁盘空间并提高Windows的性能。^(Windows)

当您将JPEG图像设置为桌面墙纸或幻灯片时，操作系统会导入原始图像的降低质量并将其作为TranscodedWallpaper文件存储在%AppData%\Microsoft\Windows\Themes文件夹中。一旦发生这种情况，Windows 将使用TranscodedWallpaper^{(TranscodedWallpaper)}文件缓存中的此图像文件来设置桌面背景。

现在，此功能对于具有中等规格的 PC 非常重要，但如果您拥有出色的硬件，那么这没有任何意义，因为您可以拥有全高清壁纸而不会降低桌面壁纸的质量。不幸的是，Windows 10没有提供在“设置”中禁用JPG壁纸质量降低的方法，但注册表修复可以帮助您禁用这种自动图像压缩。因此，不要浪费任何时间，让我们在下面列出的教程的帮助下看看如何在Windows 10中禁用^{(Windows 10)}桌面壁纸 JPEG 质量降低。^{(Desktop Wallpaper JPEG Quality Reduction)}

在Windows 10中禁用桌面壁纸 JPEG 质量降低^{(Desktop Wallpaper JPEG Quality Reduction)}

确保 创建一个还原点^{(create a restore point)} 以防万一出现问题。

1.按 Windows 键 + R 然后键入regedit并按 Enter 打开注册表编辑器。^{( Registry Editor.)}

2.导航到以下注册表项：

HKEY_CURRENT_USER\Control Panel\Desktop

3.右键单击桌面^(Desktop)，然后选择New > DWORD (32-bit) Value.

注意：^(Note:)即使您在 64 位Windows上，您仍然需要创建 32 位DWORD。

4.将此新创建的 DWORD 命名为JPEGImportQuality并按 Enter。

5.现在双击JPEGImportQuality DWORD并确保在Base下选择Decimal 。

6.接下来，在值数据字段下将值更改为 100^{(change the value to 100)}，然后单击确定。

注意：^(Note:)默认值为 85，表示图像压缩率设置为 85%，值越低，图像质量越低。值 100 表示没有图像压缩的非常高质量的壁纸。

7.完成后，关闭注册表编辑器^{(Registry Editor)}。

8.再次设置所需的壁纸以确保Windows使用新的图像质量。

9.重新启动您的 PC 以保存更改。

如果将来需要还原更改，则只需导航到HKEY_CURRENT_USER\Control Panel\Desktop，然后右键单击JPEGImportQuality DWORD 并选择删除。^{( Delete.)}另外，请记住，上述设置仅对JPEG图像文件有效。如果您使用PNG文件设置桌面背景，则无需更改任何设置，因为Windows 10不会压缩PNG文件。

受到推崇的：^{(Recommended:)}

• 在 Windows 10 中禁用桌面背景图像^{(Disable Desktop Background Image in Windows 10)}
• 从 Windows 10 的桌面中删除 Internet Explorer 图标^{(Remove the Internet Explorer icon from Desktop in Windows 10)}
• 防止用户在 Windows 10 中更改桌面图标^{(Prevent User From Changing Desktop Icons in Windows 10)}
• 如何在 Windows 10 中更改桌面壁纸^{(How to Change Desktop Wallpaper in Windows 10)}

就是这样，您已经成功学习了如何在 Windows 10 中禁用桌面墙纸 JPEG 质量降低，^{(How to Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10)}但如果您对本教程仍有任何疑问，请随时在评论部分询问他们。

Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10

Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10: Whenever you set a JPEG image as desktop wallpaper you might have noticed that the desktop wallpaper isn’t as sharp as the original image, in short, the quality of the image is not same. This is because whenever you set a JPEG as wallpaper, Windows 10 automatically compresses and reduces the quality of the original image before setting it as the desktop wallpaper. This is done by the operating system in order to save disk space and improve the performance of Windows while displaying the desktop wallpaper image.

When you set a JPEG image as the desktop wallpaper or slideshow, the operating system imports the reduce quality of the original image and store it as the TranscodedWallpaper file in the %AppData%\Microsoft\Windows\Themes folder. Once this happens, Windows uses this image file from the TranscodedWallpaper file cache to set the desktop background.

Now, this feature is very important for a PC with moderate specifications but if you have excellent hardware then this doesn’t make sense as you can have the full HD wallpaper without any quality reduction as your desktop wallpaper. Unfortunately, Windows 10 doesn’t offer a method to disable the JPG wallpaper quality reduction in Settings but a registry fix can help you to disable this automatic image compression. So without wasting any time let’s see How to Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10 with the help of the below-listed tutorial.

Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10

Make sure to create a restore point just in case something goes wrong.

1.Press Windows Key + R then type regedit and hit Enter to open Registry Editor.

2.Navigate to the following registry key:

HKEY_CURRENT_USER\Control Panel\Desktop

3.Right-click on Desktop then select New > DWORD (32-bit) Value.

Note: Even if you are on a 64-bit Windows, you still need to create the 32-bit DWORD.

4.Name this newly created DWORD as JPEGImportQuality and hit Enter.

5.Now double-click on JPEGImportQuality DWORD and make sure the select Decimal under Base.

6.Next, under value data field change the value to 100 and click OK.

Note: By default value is 85 which means that the image compression is set to 85%, a lower value means lower image quality. A value of 100 indicates a very high-quality wallpaper with no image compression.

7.Once finished, close Registry Editor.

8.Again set the desired wallpaper to make sure Windows uses the new image quality.

9.Reboot your PC to save changes.

If in future, you need to revert the changes then simply navigate to HKEY_CURRENT_USER\Control Panel\Desktop then right-click on JPEGImportQuality DWORD and select Delete. Also, keep in mind that the above settings are valid only for JPEG image files. If you’re using a PNG file to set the desktop background then you don’t need to change any settings as Windows 10 doesn’t compress PNG files.

Recommended:

• Disable Desktop Background Image in Windows 10
• Remove the Internet Explorer icon from Desktop in Windows 10
• Prevent User From Changing Desktop Icons in Windows 10
• How to Change Desktop Wallpaper in Windows 10

That’s it you have successfully learned How to Disable Desktop Wallpaper JPEG Quality Reduction in Windows 10 but if you still have any queries regarding this tutorial then feel free to ask them in the comment’s section.

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