Whenever vista finally loads, my computer (emachine t5062) runs slower than a snail, if at all. after waiting for the computer to finish a task, for instance if i were to click on the start button in vista, it could take anywhere from 4-5 minutes until BSOD shows. i don't know where to start to fix the problem. in safe mode, i don't know what to do if i ever get there. can someone please tell me where to start to fix this?

Place the recovery disk that came with the eMachines computer into the CD or DVD drive. Restart the computer.
Click "Next" when the operating system restoration screen appears. Click "Repair Your Computer" and then select "Next."
Locate your eMachine's current operating system in the list of available operating systems, such as "Windows Vista." Click the appropriate choice and then choose "Next."
Select "Load Drivers" and wait for the drivers to finish installing. Select "System Restore" and then click "Next."
Scroll down through the list of available restore points. Select the first restore point if you want to completely revert the computer to factory settings. Select a later restore point if you just want to roll back any changes to your computer to an earlier date.
Click "Next" and then select "Finish." Click "Yes" and then choose "Restart" to restore the eMachines computer.