Thank's for using ComputerHope to fix your problem,
Are you getting "Sasnative64 - Could not Autocheck at boot up of your computer"
Once you are at your desktop, go to your Start Bar and type "Run", Look for Run and click on it, then type "RegEdit"
Your then See the Registry Editor window, just click on the little twiangle, next to the word,
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
Once you get there click on "Session Manager" "Do not click the twiangle, Just the word "Session Manager""
then look in the other box and double click "BootExecute"
Your then get a little box saying "Edit Multi-String"
delete "Autocheck Autochk * Autoxheck Sasnative64"
Close all the windows and reboot, your problem's have gone,
Note : that you will need to Uninstall Advanced System Optimizer 3 for this fix to work! I think this is only a problem for Windows 7 64 bit