Slow Internet - 2.9.5.14

Hi,

 

On Friday, 3 PC's at one site, all pretty much identical, purchased at the same time, users do not have admin access - all 3 would freeze in Internet Explorer. After some time, 2 of the PC's speeded up somewhat, but the 3rd remained frozen. Pages would stall, pretty much what's been going on since 2.9 was released. I uninstalled Norton Family from the 3rd, and it ran at full speed.

 

All PC's were running the latest versoin.

 

Any suggestions?

 

Thanks