We are seeing a number of these strange conversions to the AIS version in the forums.
There doesn't seem to be a common factor:
For some people it happens after they have used windows system restore ?
For others they haven't used system restore ?
The strange thing is that you report having avast free version 8.0.1455, now that is meant to be a business client version, so I'm not sure how you got that either.
The only way clear of this is to do a reinstall of avast free, I would suggest that you do a clean install:
- Download the latest version of avast, 8.0.1483
http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe and save it to your HDD, somewhere you can find it again (if you didn't save your last download). Use that when you reinstall.
- Download the avast! Uninstall Utility, aswClear.exe
find it here and save it to your HDD (it has uninstall tools for all versions).
- 1. Now uninstall avast! - using add remove programs, if you can't do that (as appears to be the case) start from the next step, reboot.
- 2. run the avast! Uninstall Utility, it will request it be run from safe mode (and will handle the boot into safe mode), first for 7.x if previously installed and then for 8.0, once complete reboot into normal mode.
- 3. install the latest version, reboot.