A AtheFU Member Joined May 11, 2013 Posts 19 Location AUT Jul 4, 2013 #1 Hello! I've a small issue while i've been trying to replace one of three HDDs in my Win7 PC. The HDD which I want to replace is empty and not a the C drive. But it was plugged in during the Windows installation, so I guess there are some kinds of bootfile on it (but I can't find the default 100MB partition on it, just a few system folders). I get "reboot and select proper boot device, ..." as far as I unplug the hard drive. I checked the BIOS and this hard drive is not listed in any boot relevant menu. Can you tell me if the problem can be solved by cloning the HDD with an Acronis Tool, or will it still exist after the replacement I also heard that unplugging the D and E drive, and start from the Win CD could be an option, if I use the repairing tools, but i can't comprehend that. Thanks!