Uxtheme.dll errors offen appear while you are running and installing program when Windows start or shutdown and even during Windows installation.

Common uxtheme.dll error messages
- "uxtheme.dll Not Found."
- "Cannot find [PATH]\uxtheme.dll."
- "The file uxtheme.dll is missing."
- "This application failed to start because uxtheme.dll was not found. Re-installing the application may fix this problem."
"Cannot start [APPLICATION]. A required component is missing: uxtheme.dll. Please install [APPLICATION] again."

How to install uxtheme.dll file?

1. Press Start and select Run
2. Type CMD and press Enter (or if you use Windows ME, type COMMAND)
3. Type regsvr32 uxtheme.dll and press Enter
4. In the end, you should receive a message saying that your file was successfully installed or uninstalled.