很多人不知道的是，从 Win10 开始，直到现在 Win11，Windows 体系默许的看图 App 都存在一个重大缺点 —— 颜色办理。
从 Win10 开始，体系默许的看图 App 运用 UWP 构建，颜色办理十分糟糕，在广色域屏幕上，看一张 SRGB 色域的图片，分分钟出现饱和度爆表的情况，颜色过分艳丽以至于辣眼。UWP 发布这么多年，颜色办理的问题依然悬而未决，真实很不应该。
▲ Win10 开始，包括相片 App 在内的 UWP 运用无法正确进行颜色办理，图为 Chrome 和旧 Edge 的比照
在 Win7 中，就不存在这样的问题。Win7 体系的相片查看器运用 Win32 构建，对颜色办理有着比较好的支撑。所以问题来了，在 Win11 中这个 Win7 版的相片查看器默许是找不到的，要怎么从头将它找回来？可以试试下面的方法！
首先，我们打开记事本，将以下文本仿制进去。
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll]
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell]
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open]
"MuiVerb"="@photoviewer.dll,-3043"
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\
6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\
00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\
25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\
00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\
6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\
00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\
5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\
00,31,00,00,00
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\DropTarget]
"Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}"
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print]
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\
6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\
00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\
25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\
00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\
6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\
00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\
5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\
00,31,00,00,00
[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\DropTarget]
"Clsid"="{60fd46de-f830-4894-a628-6fa81bc0190d}"
接着，点击“文件”-“另存为”，将其另存为后缀名为“.reg”的注册表文件。
然后，双击运转这个注册表文件，向注册表导入信息。
导入后，Win7 版本的相片查看器其实就现已回来了。右键点击图片文件，挑选打开方式，就可以找到经典的“相片查看器”了！
最后想说的是，平心而论，Win11 自带的看图 App 界面更好看，动画更流畅，对触控的支撑也更好。但偏偏在颜色办理这样的基本功上，却完败给了 Win7 的相片查看器，作为一款看图工具，连颜色都无法正常显现。UWP 糟糕的颜色办理现已不是一两天的事情了，微软迟迟没有解决这个问题，真实令人感到绝望。
