Skip to main content
Super User

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

7
  • Yes, you've made the typical mistake people do when they don't understand UEFI. Now, although there are Windows tools for what you want to do, reinstalling with only the new drive connected/enabled is by far much easier and probably faster. Later you can reconnect/re-enable the old drive and copy over your olod files or simply reformat it for other usages.
    – user931000
    Commented Dec 11, 2019 at 17:43
  • I don't think that reinstallation is required. It may be enough to reduce C, leaving, say, 600 MB of unallocated space, then disconnect disk 5 and do Startup Repair on disk 4.
    – harrymc
    Commented Dec 11, 2019 at 19:56
  • @harrymc Sounds like a really good idea, but I'll leave 2GB of unallocated space at the beginning, just to be absolutely sure.
    – Diblo Dk
    Commented Dec 11, 2019 at 20:10
  • This might help - link.
    – harrymc
    Commented Dec 11, 2019 at 20:13
  • @GabriellaGarcia regarding UEFI: guilty for sure. That's stuff I need about once a year and forget from occasion to occasion... But really want to avoid to reinstall.
    – user375251
    Commented Dec 12, 2019 at 11:58