Windows 7: Sharing Problem between win7's

I am facing a problem which is that i have two PC's and One laptop.. One pc which is the server is running Windows 7 X64 and the other two are on Windows 7 X32. i wanted to share a folder on my Windows 7 X64 pc and want to use that folder on the other pc.. as i didnt put any passwords on all of the system .. some time i can open the share-folder and once i close it and try to open it again it asks me for a login and password and the most irritating part is that there is no password on any logins. i have tried all the way . i dnt knw wht todo ... why its not sharing for ever.. why it ask the password for the second time and even there is no login .. Please need a experts advise. i have tried so many thing.

I believe that in your case the "require password from waking from sleep" is turned on in power options.

Go to Control Panel, then Power Options "look upper left side". Click "Require a password on wakeup".

Select the radio button "Don't Require a Password" and then Save Changes. Your done.