How do I clean the temporary files and schedule a boot time scan?
Clean the temporary files:
1. You can browse Links on my signature for auto-cleaners applications.
2. You can go there with Windows Explorer and manual delete them.
3. For Internet cache, go to Internet explorer >Tools > Internet options > Delete files > Click delete all offline content (just to be sure) > click ok. It might take some time to delete them.
Schedule a boot time scan?
1. Read the help file
2. Start avast! > Right click the skin > Schedule a boot-time scanning > Select for scanning archives > Boot.