Update antivirus base manually

Hello, I’m Alexander.
Yesterday I had installed Comodo Antivirus 5.4.189822.1355 to my friend’s comp. I’m sure that his comp have viruses couse it infect my USB-flash. I tried to update it’s antivirus base but it is impossible. The progradd said “Cannot update. Verify your Internet connection.” Or something like that. (Programm is in Russian). The Internet connection is ok, but very slowly.
Can I download actual base, save it to my USB-flash and update the programm manually? If it so, how I can do it?
ps Sorry for my English

Here are instructions on how to do so

Sorry, already found at FAQs! :slight_smile:
wasgij6 Tanks!