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? Just realized I might have posted this in the wrong thread. Moderators can move if need be.