I actually bought avast! 4 Professional Edition because it does scanning before the computer actually restarts. After I just bought it it did scan the way I need it but now I can’t even find an option to do scanning while the computer is in stand by mode, while the Windows are shut down. Anybody knows how to do it?
I think you mean “Boot Time Scan”
Scheduling the Boot Time Scan
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Click on the Menu button.
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Choose Schedule Boot Time Scan.
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Doing so displays a dialog allowing you to schedule virus scanning.
Check Archives, if you want scan all the archives.
Specify whether all the disks or just a specific folder should be scanned.
Select Advanced options for scheduling details.
Select how to automatically process infected files.
Choose how to automatically process infected system files. -
Click the Schedule button to confirm the settings.
And after that, a boot scan will start, next time you reboot your computer.
The boot-time scanner (present in the Home version as well, btw) is performed when Windows start (i.e. then the computer is restarted, or powered on) - not when it wakes up from suspend or stand-by.
In the Professional version you can set the option to shutdown the computer after the scanning.
See …