Win32:crypt-rtm (trj) . Help please

By launching boot- time scan by avast theree file infected by the above mentioned troyan.
The three files were moved to the safe chest.
What have i to do now?

I was experiencing mouse freeze and internet connection hick ups.

It seems that , Ftwe avast boot time scan , the problem persist.

Could you help me please?

Attach your basic diagnostic logs. (MBAM, FRST and aswMBR)
Instructions: https://forum.avast.com/index.php?topic=53253