Disabling AV/AT when Installing?

I have been listenning to some podcasts about Rootkits plus reading about them on forums.

Something which I was wondering about was the fact when I install any software (after scanning it if it was downloaded)
I would normally disconnect from my ADSL and then shut down my security software eg NOD32 + BOclean.
This is something I have always adhered to especially when the software recommends shutting down running applications.

Back to the Rootkit worry - should I be leaving NOD + BOClean running when I install as they may detect a rootkit in the actual installer?
I only install 'trusted' software and if possible purchased on disc or online as registered but would like extra advice on the possiblity if a nasty rootkit was lurking would it be detected on the last reboot for the install when the security software is active on boot?

I hope this makes sense.

 

You shouldn't shut down your security software when installing applications. The "you are strongly recommended to close all running applications" is hogwash in 99% of cases and is only there to protect the software makers from liability. (Think McDonald's-hot-coffee-suit. They now inform you on the cup that the coffee is indeed hot.) The only case where I would shut down all running applications is if I were installing a service pack, driver upgrade or anything similar which might make low-level modifications to the system.

 

Thank you for this clarifcation I was always wondering if this would be detrimental but now I know for sure.
Appreciate your reply and will leave my security running with future installs.

Thank you

 

The only time I would consider disabling security apps is if you are flashing your router with firmware. If your av gives a false positive in the middle of the upgrade, then your router could end up being bricked(bricked is basically what the name suggests, its only function is working like a brick, no more useful electronics ).

On all other occasions, I always keep my security software running.

Alphalutra1