How do I stop CCleaner from disabling my f.lux to start when I turn on my computer?

I use f.lux because I have vision problems. CCleaner recently cleaned and optimized with health check and disabled my f.lux app. I went to Clt+Alt+Del and enabled again f.lux. But if I turn off the computer, next time, it’s disable. It overrides Microsoft. How can I have my f.lux again?

Hi @Adamtmr,
This may be put to sleep by the Performance Optimizer feature in CCleaner.
Please check the Performance Optimizer feature and if f.lux is listed under the Sleeping Apps tab, and if so, select Activate next to the app, and this should resolve the issue.