UltraUXThemePatcher modifies your system files so that 3rd party themes can be used. You can download Windows themes from third parties and activate them. The program backups the original system files and all changes can be undone by uninstalling if you have issues.
UltraUXThemePatcher is available for Windows XP to Windows 10 (RTM, Anniversary Update 1607, Creators Update 1703, Fall Creators Update 1709) for 32bit and 64bit version.
Changes in UltraUXThemePatcher 4.1.0:
Support for next major Update 21H2
Problems after big Update should be fixed
Note: You might want to create a restore point before installing UltraUXThemePatcher. This application make changes to your system files, this can lead to unexpected problems or total breakdown of Windows!