?????? 如果要更改系统主题，服务中没有Thems服务没有启动是无法更改的。如果服务没有启动，直接启动就OK了。同时也会有以下问题的出现，服务中并没有Thems服务。解决方案很简单，如下：

?????? 新建一个记事本，将以下代码粘贴，修改扩展名为reg，执行，导入注册表，重新启动计算机，大功告成，您可以随意更改自己的主题了。

Windows Registry Editor Version 5.00 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Themes] 
"Type"=dword:00000020 
"Start"=dword:00000002 
"ErrorControl"=dword:00000001 
"ImagePath"=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,00,73,\ 
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,\ 
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,00,00 
"DisplayName"="Themes" 
"Group"="UIGroup" 
"ObjectName"="LocalSystem" 
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,00,00,00,\ 
00,01,00,00,00,60,ea,00,00,01,00,00,00,60,ea,00,00,00,00,00,00,00,00,00,00 
"Description"="为用户提供使用主题管理的经验。" 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Themes\Parameters] 
"ServiceDll"=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,\ 
73,00,68,00,73,00,76,00,63,00,73,00,2e,00,64,00,6c,00,6c,00,00,00 
"ServiceMain"="ThemeServiceMain" 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Themes\Security] 
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\ 
00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\ 
00,00,02,00,60,00,04,00,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,\ 
05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\ 
20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\ 
00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\ 
00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Themes\Enum] 
"0"="Root\\LEGACY_THEMES\\0000" 
"Count"=dword:00000001 
"NextInstance"=dword:00000001