I think I posted the original in the wrong thread so I decided to post it here also. Sorry for the double post. Hi. I tried to install Windows 10 today, but failed three times. I'm running Windows 7 64. I went through the process of downloading and installing Windows 10. I get a window asking how I want to configure my keyboard. I click on U.S. Another window opens and there are several boxes to click on. I can't remember all of them or the exact wording, but one is remove files and apps but keep personal info, and the other is remove everything. I clicked on remove files and apps but keep personal info. Then I get the error message, that Windows 10 cannot be installed because my hard drive is locked. Please unlock your hard drive. I can usually figure things out myself when it come to most computer problems, but have no idea what to do here. Can anyone give me some help or suggestions?