3. Though there is numerous reason for the error, that is not easy to identify. Check out some of the reason for the error mentioned below-  Incomplete and incorrect installation of Avast antivirus software  Windows registry associated with Avast might be corrupted  Avast related files are corrupted and infected with malware and other adware

4.  Repair Registry Entries Associated with Error RPC  Conduct a Full Malware Scan of Your PC  Update Your PC Device Drivers

5.  Install All Available Windows Updates  Perform a Clean Installation of Windows  Install All Available Windows Updates  Run Windows System File Checker ("sfc /scan now")

6. Avast Technical Support Number 1-800-439-2178 toll-free toll-free visit at http://avast-antivirus.technicalsupportservicesinc.com/