why did they stop it?
It was never available. It's a new feature.
ohhhh..... so i have to buy which version to have it?
Hi asdasmos,
Welcome to the forum.
No need to pay anything.
The issue is this. As Tech pointed out,
Boot-time scanner is available on 32bit WinNT/2000/XP/Vista for avast Home (free) and Professional.
As you are well aware since you have a 64-bit computer (and supposedly a 64-bit Operating system such as XP 64-bit or Vista 64-bit) older applications (software) were developed for the 32-bit systems which were and still are the standard. However with the growth and development of 64-bit Platforms, software vendors will develop software for it.
In this case avast offers the same protection on the 32-bit and 64-bit with the exception of the boot-time scan. When Version 5.1 will be released, the boot-time scan will be avvailable on the 64-bit architecture as well.