Yep, just briefly after I noticed the new beta was available, I uninstalled NOD32 (I uninstall and cleanup registry before installing new versios of anything, it's usually messy when you don't and do it over the old versions) but in this case that didn't seem to apply. I restarted after the unistall process was done and everything was laggy and every executable including explorer.exe kept crashing. I decided to install the new beta then, since I knew I coud restore my system if anything went even worse but geez, it solved it all!, no more lags or crashing. My questions are: why does this happen?, I don't feel any good with idea of getting a corrupted system if I ever decide to uninstall NOD32. Ty!.