I DO have the reported problem: on Win 7 Ultimate 64bit with actual CCleaner and Avast 2014, in CCleaner Tools Menu / Startup it is no more possible to deactivate common entries like Adobe ARM or Java Update Scheduler.
- It took about 10 hours of work until I discovered this thread. I thought I had problems with access control / security items, tried and retried to take ownership with my (admin) user of simply everything. When this failed, I came to this forum. Gladly somebody had started the thread, thank you so much.
This moment I experience even worse problems, like CCleaner Clean hanging, SWEEPI Clean hanging (SWEEPI is great, experience it!). Not sure whether this is although fault of Avast.
I already informed exceptions in Avast, and this moment I totally deactivated Avast in his options menu. The problems still persist. Next step: I will do a total deinstallation of Avast 2014 (my personal and subjective recommendation).
Even though I am very grateful for the past time excellence of Avast Free Antivirus, it has been the n°1.