Manually you mean? if you are trying to create Restore Point manually then ,
create a restore point for windows 7 Start / Control Panel / System / System Protection / At bottom of screen last button on right says create. Click it and it will ask you to create a restore point discription for the restore. hope this helps you.
I recommend to use Avira AntiVirus to use with Windows 7. It's the best and i'm curently using it. You can download the free version which has only a few options, but you can also buy new with very little price.