I can't install it, keep trying to download vps_32-f3c.vpx.dld with no success

[REDACTED]

Hello,

I'm trying to install avast free, but the installation module can't download vps_32-f3c.vpx.dld. When it reaches abot %80, it starts to download it again from 0%. That ocurrs several times, till an error screen shows saying I have to reboot and continue the process. I did it a lot of times with no fortune.
I use windows 7 sp1, have comodo firewall installed (I've tryed disabling it to install avast, with no results...)

What could it be?

thanks

[DavidR]

Have (or did) you another Anti-Virus installed in this system, if so what was it and how did you get rid of it ?
Is your Comodo installation only the firewall and not the combined security package (including AV) ?

Are you trying to do an on-line installation or an off-line installation ?
An off-line installation is the full setup installation file http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe and is around 126MB, see image attached click to expand.