Posted 29 June 2010 - 01:31 AM
I think the case is of malfunctioning of keyboard's ASCII logic as it is sending the signal of the character or number two time. But, if it is not a problem then you can go to open PC without password. Following are the steps for Windows 7.
1. Press Window Key + R together, this will launch run prompt as seen below. Type “NETPLWIZ” in it without quotes and click OK. This will open a User Accounts Window
2. On the User Account Window as seen below, select the user which you use, and uncheck the option which says “User must enter a use name and password to use this computer”
3. When you click to uncheck this option, it will ask you to confirm the password, enter the password here.