when i do a virus scan it takes about nearly 3hrs to complete with norton security 2007,if i don move the mouse or touch the keyboard within that time the screen go's into stand by and wont come back on. the on off button on the tower flashes and the orange light stays on. i press ctrl alt and delete but nothing happens i try every button but nothing happens, so i have to switch off and start again,also it runs slow. any answers please help?
Go to Control Panel > Power Options > Power Schemes tab and make sure the "Turn off Hard Disks", "Turn off Monitor" and "System Standby" options are all set to "Never", click Apply and OK to exit. Then go to Control Panel > Display > Screensaver tab and set the screensaver to "None". Click Apply and OK to exit.