How To Use or apply a custom themes in Windows PC, without patching any system files? UXStyle is a small utility that installs a background service that will enable to use a custom themes.
UxStyle is a light-weight system service named Unsigned Themes, complimentary to the Themes service, and a kernel driver, sizing in at ~500k and ~17kb respectfully (beta builds). The service handles the enabling/disabling of custom theme support and the kernel driver handles patching. For 64-bit platforms, the kernel driver is signed with a digital certificate, as required by Microsoft.
Note: In our test system (Windows 7 Pro SP1 x64) sometimes the service wont load properly, and your custom theme wont be applied, re-install will fix it that is why we prefer to use Universal Theme Patcher if you want a stable way to patch your system.