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Installed Win 10, still boots in Win 8.1
I attempted to install Win 10 on my HP 7000 laptop with 6GB memory, and gobs of disk space. At first, I got the C1900107 error. After an internet search, I renamed (effectively removing) the .-BT directory. I started the download again. That went fine. Then it did the "configuring files," which seemed to take forever. I walked away for a moment and when I returned, the window was displaying a message to restart the computer. No error messages were displayed. I restarted the computer, in which it installed several updates. But when it came back up, it was still under Win 8.1. I would appreciate any help anyone can offer as to how to get the computer to come up in Win 10 after an apparently successful install.