2 of 2 people found the following review helpful
1.0 out of 5 stars
Heavy Going, 10 Mar. 2013
I have Bitdefender IS 2013 (3 user) installed on a couple of systems. Firstly, it is very effective at its job; however, it is very demanding of system resources. My main machine, (a run of the mill PC) often slows right down as the program uses huge amounts of resources.
On any less powerful system, such as a netbook, the entire system freezes for some minutes as the program works. I have decided not to install it on my ageing laptop, since it may render the system unusable.
It is much worse than the paid versions of AVG which I used to have - (thinking of going back!)
The price was good, but the inconvenience far outweighs the problems I have. In short, if you have a newish, fast and powerful system, it will be ok, anything less will struggle, and would not recommend.