oi brasileiro ...
enclosed a pic of the situation (sorry, it's a german version)
1. Avast starts
2. Message: ESC to stop the scanning (off course I didn't touch anything at this stage ...)
3. Immediately Avast shows : Keyboad error and (skipping the scan) three lines telling that 0 files, 0 folders where scanned, and 0 infected files have been found
4. 1 second later, without asking any confirmation the boot process continues.
I tried everything, even telling Avast to delete all infected files and to delete or move system files (without prompting for permission) ... see pic 2
By the way, I forgot to tell, in the very beginning avast could'nt be opened.
Therefore I made first a scan with an up-to-date avast cleaner: w.o. any result.
After reboot avast could be opened again and I sceduled a boot-time scan (with the above effect ... skipping the scan with keyboard error)
I therefore scanned the machine with Microsoft One Care ... it found and deleted the virus.
I then updated the 4 other AV scanners mentionned, deactivated the NIC, rebooted in save mode. The 4 command line scanners didn't find anything apart of a few corrupded files in non critical areas ...
I then reinstalled a Avast (latest download), but the keyboard error at boot-time scan remains!
Hope we can find a solution - it's only 2 month ago I upgraded my system with a Core Duo Quad and a new mainboard. Thinking about reinstalling the whole system again turns me nuts ...