1 Sign into your Windows 8 computer and press Windows key + R to open command prompt. 2  Enter netplwiz without quotes in the open command prompt to open the User Accounts window. 3  Uncheck user must enter user name and password to use this computer, then click ok.o get started, free download and install Windows Password Recovery Tool in a workable computer. 1  Insert a CD/DVD disk or USB flash to the workable computer. 2  Take out the password reset disk and insert it into your locked computer. 3  After that, Windows Password Recovery Tool appears on your screen.