Prevent Windows Asking for a Password on Wake Up from Sleep/Standby
If you’ve configured Windows to automatically log you in rather than having to enter a password, you might find it annoying that you still need to enter a password when your PC comes out of sleep mode. Here’s the quick fix.
Make Windows 7 Not Require a Password on Wake
Windows 7 makes the whole thing a lot easier—just head into Power Options in Control Panel, then click the “Require a password on wakeup” on the left-hand side.
Then click the “Change settings that are currently unavailable” link
Then you can click the “Don’t require a password” radio button, and make sure to Save your changes.